{"id":4444,"date":"2020-04-13T13:31:37","date_gmt":"2020-04-13T13:31:37","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/mathforlibscoreq\/?post_type=chapter&#038;p=4444"},"modified":"2021-02-06T00:04:29","modified_gmt":"2021-02-06T00:04:29","slug":"using-linear-square-and-cubic-measure-appropriately","status":"web-only","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/slcc-mathforliberalartscorequisite\/chapter\/using-linear-square-and-cubic-measure-appropriately\/","title":{"raw":"Using Linear, Square, and Cubic Measure Appropriately","rendered":"Using Linear, Square, and Cubic Measure Appropriately"},"content":{"raw":"<div class=\"textbox learning-objectives\">\r\n<h3>Learning Outcomes<\/h3>\r\n<ul>\r\n \t<li>Given an item to measure determine whether you would use linear, square, or cubic units<\/li>\r\n \t<li>Calculate perimeter and area of a rectangle<\/li>\r\n<\/ul>\r\n<\/div>\r\n<p>When you measure your height or the length of a garden hose, you use a ruler or tape measure (see below). A tape measure might remind you of a line\u2014you use it for linear measure, which measures length. Inch, foot, yard, mile, centimeter and meter are units of linear measure.<\/p>\r\nThis tape measure measures inches along the top and centimeters along the bottom.\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223824\/CNX_BMath_Figure_09_04_001.png\" alt=\"A picture of a portion of a tape measure is shown. The top shows the numbers 1 through 5. The portion from the beginning to the 1 has a red circle and an arrow to a picture from 0 to 1 inch, with 1 sixteenth, 1 eighth, 3 eighths, 1 half, and 3 fourths labeled. Above this, it is labeled \" \/>\r\nWhen you want to know how much tile is needed to cover a floor, or the size of a wall to be painted, you need to know the area, a measure of the region needed to cover a surface. Area is measured is square units. We often use square inches, square feet, square centimeters, or square miles to measure area. A square centimeter is a square that is one centimeter (cm) on each side. A square inch is a square that is one inch on each side (see below).\r\n\r\nSquare measures have sides that are each [latex]1[\/latex] unit in length.\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223826\/CNX_BMath_Figure_09_04_002.png\" alt=\"Two squares are shown. The smaller one has sides labeled 1 cm and is 1 square centimeter. The larger one has sides labeled 1 inch and is 1 square inch.\" \/>\r\nThe next image shows a rectangular rug that is [latex]2[\/latex] feet long by [latex]3[\/latex] feet wide. Each square is [latex]1[\/latex] foot wide by [latex]1[\/latex] foot long, or [latex]1[\/latex] square foot. The rug is made of [latex]6[\/latex] squares. The area of the rug is [latex]6[\/latex] square feet.\r\n\r\nThe rug contains six squares of [latex]1[\/latex] square foot each, so the total area of the rug is [latex]6[\/latex] square feet.\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223828\/CNX_BMath_Figure_09_04_003.png\" alt=\"A rectangle is shown. It has 3 squares across and 2 squares down, a total of 6 squares.\" \/>\r\nWhen you measure how much it takes to fill a container, such as the amount of gasoline that can fit in a tank, or the amount of medicine in a syringe, you are measuring volume. Volume is measured in cubic units such as cubic inches or cubic centimeters. When measuring the volume of a rectangular solid, you measure how many cubes fill the container. We often use cubic centimeters, cubic inches, and cubic feet. A cubic centimeter is a cube that measures one centimeter on each side, while a cubic inch is a cube that measures one inch on each side (see below).\r\n\r\nCubic measures have sides that are [latex]1[\/latex] unit in length.\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223829\/CNX_BMath_Figure_09_04_004.png\" alt=\"Two cubes are shown. The smaller one has sides labeled 1 cm and is labeled as 1 cubic centimeter. The larger one has sides labeled 1 inch and is labeled as 1 cubic inch.\" \/>\r\nSuppose the cube in the image below\u00a0measures [latex]3[\/latex] inches on each side and is cut on the lines shown. How many little cubes does it contain? If we were to take the big cube apart, we would find [latex]27[\/latex] little cubes, with each one measuring one inch on all sides. So each little cube has a volume of [latex]1[\/latex] cubic inch, and the volume of the big cube is [latex]27[\/latex] cubic inches.\r\n\r\nA cube that measures [latex]3[\/latex] inches on each side is made up of [latex]27[\/latex] one-inch cubes, or [latex]27[\/latex] cubic inches.\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223831\/CNX_BMath_Figure_09_04_005.png\" alt=\"A cube is shown, comprised of smaller cubes. Each side of the cube has 3 smaller cubes across, for a total of 27 smaller cubes.\" \/>\r\n<div class=\"textbox exercises\">\r\n<h3>example<\/h3>\r\nFor each item, state whether you would use linear, square, or cubic measure:\r\n1. amount of carpeting needed in a room\r\n2. extension cord length\r\n3. amount of sand in a sandbox\r\n4. length of a curtain rod\r\n5. amount of flour in a canister\r\n6. size of the roof of a doghouse.\r\n\r\nSolution\r\n<table id=\"eip-104\" class=\"unnumbered unstyled\" summary=\"...\">\r\n<tbody>\r\n<tr>\r\n<td>1. You are measuring how much surface the carpet covers, which is the area.<\/td>\r\n<td>square measure<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>2. You are measuring how long the extension cord is, which is the length.<\/td>\r\n<td>linear measure<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3. You are measuring the volume of the sand.<\/td>\r\n<td>cubic measure<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4. You are measuring the length of the curtain rod.<\/td>\r\n<td>linear measure<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>5. You are measuring the volume of the flour.<\/td>\r\n<td>cubic measure<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>6. You are measuring the area of the roof.<\/td>\r\n<td>square measure<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n&nbsp;\r\n<div class=\"textbox key-takeaways\">\r\n<h3>try it<\/h3>\r\n[ohm_question]146501[\/ohm_question]\r\n\r\n<\/div>\r\nMany geometry applications will involve finding the perimeter or the area of a figure. There are also many applications of perimeter and area in everyday life, so it is important to make sure you understand what they each mean.\r\n\r\nPicture a room that needs new floor tiles. The tiles come in squares that are a foot on each side\u2014one square foot. How many of those squares are needed to cover the floor? This is the area of the floor.\r\n\r\nNext, think about putting new baseboard around the room, once the tiles have been laid. To figure out how many strips are needed, you must know the distance around the room. You would use a tape measure to measure the number of feet around the room. This distance is the perimeter.\r\n<div class=\"textbox shaded\">\r\n<h3>Perimeter and Area<\/h3>\r\nThe perimeter is a measure of the distance around a figure.\r\nThe area is a measure of the surface covered by a figure.\r\n\r\n<\/div>\r\nThe image below shows a square tile that is [latex]1[\/latex] inch on each side. If an ant walked around the edge of the tile, it would walk [latex]4[\/latex] inches. This distance is the perimeter of the tile.\r\n\r\nSince the tile is a square that is [latex]1[\/latex] inch on each side, its area is one square inch. The area of a shape is measured by determining how many square units cover the shape.\r\n<p style=\"text-align: center\">[latex]\\begin{array}{c}\\text{Perimeter}=4\\text{ inches}\\\\ \\text{Area}=1\\text{ square inch}\\end{array}[\/latex]<\/p>\r\nWhen the ant walks completely around the tile on its edge, it is tracing the perimeter of the tile. The area of the tile is [latex]1[\/latex] square inch.\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223832\/CNX_BMath_Figure_09_04_006.png\" alt=\"A 5 square by 5 square checkerboard is shown with each side labeled 1 inch. An image of an ant is shown on the top left square.\" \/>\r\n<div class=\"textbox exercises\">\r\n<h3>example<\/h3>\r\nEach side of two square tiles is [latex]1[\/latex] square inch. Two tiles are pushed side by side and shown together below.\r\n1. What is the perimeter of the figure?\r\n2. What is the area?\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223833\/CNX_BMath_Figure_09_04_007.png\" alt=\"A checkerboard is shown. It has 10 squares across the top and 5 down the side.\" \/>\r\n[reveal-answer q=\"66200\"]Show Solution[\/reveal-answer]\r\n[hidden-answer a=\"66200\"]\r\n\r\nSolution\r\n1. The perimeter is the distance around the figure. The perimeter is [latex]6[\/latex] inches.\r\n2. The area is the surface covered by the figure. There are [latex]2[\/latex] square inch tiles so the area is [latex]2[\/latex] square inches.\r\n\r\n<img class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223834\/CNX_BMath_Figure_09_04_008.png\" alt=\"A checkerboard is shown. It has 10 squares across the top and 5 down the side. The top and bottom each have two adjacent 1 inch labels across, the sides have 1 inch labels.\" \/>\r\n\r\n[\/hidden-answer]\r\n\r\n<\/div>\r\n&nbsp;\r\n<div class=\"textbox key-takeaways\">\r\n<h3>try it<\/h3>\r\n[ohm_question]146926[\/ohm_question]\r\n\r\n<\/div>\r\nIn the following video we show a similar example as the ones above.\r\n\r\nhttps:\/\/youtu.be\/wguTQZRAlYY","rendered":"<div class=\"textbox learning-objectives\">\n<h3>Learning Outcomes<\/h3>\n<ul>\n<li>Given an item to measure determine whether you would use linear, square, or cubic units<\/li>\n<li>Calculate perimeter and area of a rectangle<\/li>\n<\/ul>\n<\/div>\n<p>When you measure your height or the length of a garden hose, you use a ruler or tape measure (see below). A tape measure might remind you of a line\u2014you use it for linear measure, which measures length. Inch, foot, yard, mile, centimeter and meter are units of linear measure.<\/p>\n<p>This tape measure measures inches along the top and centimeters along the bottom.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223824\/CNX_BMath_Figure_09_04_001.png\" alt=\"A picture of a portion of a tape measure is shown. The top shows the numbers 1 through 5. The portion from the beginning to the 1 has a red circle and an arrow to a picture from 0 to 1 inch, with 1 sixteenth, 1 eighth, 3 eighths, 1 half, and 3 fourths labeled. Above this, it is labeled\" \/><br \/>\nWhen you want to know how much tile is needed to cover a floor, or the size of a wall to be painted, you need to know the area, a measure of the region needed to cover a surface. Area is measured is square units. We often use square inches, square feet, square centimeters, or square miles to measure area. A square centimeter is a square that is one centimeter (cm) on each side. A square inch is a square that is one inch on each side (see below).<\/p>\n<p>Square measures have sides that are each [latex]1[\/latex] unit in length.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223826\/CNX_BMath_Figure_09_04_002.png\" alt=\"Two squares are shown. The smaller one has sides labeled 1 cm and is 1 square centimeter. The larger one has sides labeled 1 inch and is 1 square inch.\" \/><br \/>\nThe next image shows a rectangular rug that is [latex]2[\/latex] feet long by [latex]3[\/latex] feet wide. Each square is [latex]1[\/latex] foot wide by [latex]1[\/latex] foot long, or [latex]1[\/latex] square foot. The rug is made of [latex]6[\/latex] squares. The area of the rug is [latex]6[\/latex] square feet.<\/p>\n<p>The rug contains six squares of [latex]1[\/latex] square foot each, so the total area of the rug is [latex]6[\/latex] square feet.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223828\/CNX_BMath_Figure_09_04_003.png\" alt=\"A rectangle is shown. It has 3 squares across and 2 squares down, a total of 6 squares.\" \/><br \/>\nWhen you measure how much it takes to fill a container, such as the amount of gasoline that can fit in a tank, or the amount of medicine in a syringe, you are measuring volume. Volume is measured in cubic units such as cubic inches or cubic centimeters. When measuring the volume of a rectangular solid, you measure how many cubes fill the container. We often use cubic centimeters, cubic inches, and cubic feet. A cubic centimeter is a cube that measures one centimeter on each side, while a cubic inch is a cube that measures one inch on each side (see below).<\/p>\n<p>Cubic measures have sides that are [latex]1[\/latex] unit in length.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223829\/CNX_BMath_Figure_09_04_004.png\" alt=\"Two cubes are shown. The smaller one has sides labeled 1 cm and is labeled as 1 cubic centimeter. The larger one has sides labeled 1 inch and is labeled as 1 cubic inch.\" \/><br \/>\nSuppose the cube in the image below\u00a0measures [latex]3[\/latex] inches on each side and is cut on the lines shown. How many little cubes does it contain? If we were to take the big cube apart, we would find [latex]27[\/latex] little cubes, with each one measuring one inch on all sides. So each little cube has a volume of [latex]1[\/latex] cubic inch, and the volume of the big cube is [latex]27[\/latex] cubic inches.<\/p>\n<p>A cube that measures [latex]3[\/latex] inches on each side is made up of [latex]27[\/latex] one-inch cubes, or [latex]27[\/latex] cubic inches.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223831\/CNX_BMath_Figure_09_04_005.png\" alt=\"A cube is shown, comprised of smaller cubes. Each side of the cube has 3 smaller cubes across, for a total of 27 smaller cubes.\" \/><\/p>\n<div class=\"textbox exercises\">\n<h3>example<\/h3>\n<p>For each item, state whether you would use linear, square, or cubic measure:<br \/>\n1. amount of carpeting needed in a room<br \/>\n2. extension cord length<br \/>\n3. amount of sand in a sandbox<br \/>\n4. length of a curtain rod<br \/>\n5. amount of flour in a canister<br \/>\n6. size of the roof of a doghouse.<\/p>\n<p>Solution<\/p>\n<table id=\"eip-104\" class=\"unnumbered unstyled\" summary=\"...\">\n<tbody>\n<tr>\n<td>1. You are measuring how much surface the carpet covers, which is the area.<\/td>\n<td>square measure<\/td>\n<\/tr>\n<tr>\n<td>2. You are measuring how long the extension cord is, which is the length.<\/td>\n<td>linear measure<\/td>\n<\/tr>\n<tr>\n<td>3. You are measuring the volume of the sand.<\/td>\n<td>cubic measure<\/td>\n<\/tr>\n<tr>\n<td>4. You are measuring the length of the curtain rod.<\/td>\n<td>linear measure<\/td>\n<\/tr>\n<tr>\n<td>5. You are measuring the volume of the flour.<\/td>\n<td>cubic measure<\/td>\n<\/tr>\n<tr>\n<td>6. You are measuring the area of the roof.<\/td>\n<td>square measure<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"textbox key-takeaways\">\n<h3>try it<\/h3>\n<p><iframe loading=\"lazy\" id=\"ohm146501\" class=\"resizable\" src=\"https:\/\/ohm.lumenlearning.com\/multiembedq.php?id=146501&theme=oea&iframe_resize_id=ohm146501&show_question_numbers\" width=\"100%\" height=\"150\"><\/iframe><\/p>\n<\/div>\n<p>Many geometry applications will involve finding the perimeter or the area of a figure. There are also many applications of perimeter and area in everyday life, so it is important to make sure you understand what they each mean.<\/p>\n<p>Picture a room that needs new floor tiles. The tiles come in squares that are a foot on each side\u2014one square foot. How many of those squares are needed to cover the floor? This is the area of the floor.<\/p>\n<p>Next, think about putting new baseboard around the room, once the tiles have been laid. To figure out how many strips are needed, you must know the distance around the room. You would use a tape measure to measure the number of feet around the room. This distance is the perimeter.<\/p>\n<div class=\"textbox shaded\">\n<h3>Perimeter and Area<\/h3>\n<p>The perimeter is a measure of the distance around a figure.<br \/>\nThe area is a measure of the surface covered by a figure.<\/p>\n<\/div>\n<p>The image below shows a square tile that is [latex]1[\/latex] inch on each side. If an ant walked around the edge of the tile, it would walk [latex]4[\/latex] inches. This distance is the perimeter of the tile.<\/p>\n<p>Since the tile is a square that is [latex]1[\/latex] inch on each side, its area is one square inch. The area of a shape is measured by determining how many square units cover the shape.<\/p>\n<p style=\"text-align: center\">[latex]\\begin{array}{c}\\text{Perimeter}=4\\text{ inches}\\\\ \\text{Area}=1\\text{ square inch}\\end{array}[\/latex]<\/p>\n<p>When the ant walks completely around the tile on its edge, it is tracing the perimeter of the tile. The area of the tile is [latex]1[\/latex] square inch.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223832\/CNX_BMath_Figure_09_04_006.png\" alt=\"A 5 square by 5 square checkerboard is shown with each side labeled 1 inch. An image of an ant is shown on the top left square.\" \/><\/p>\n<div class=\"textbox exercises\">\n<h3>example<\/h3>\n<p>Each side of two square tiles is [latex]1[\/latex] square inch. Two tiles are pushed side by side and shown together below.<br \/>\n1. What is the perimeter of the figure?<br \/>\n2. What is the area?<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223833\/CNX_BMath_Figure_09_04_007.png\" alt=\"A checkerboard is shown. It has 10 squares across the top and 5 down the side.\" \/><\/p>\n<div class=\"qa-wrapper\" style=\"display: block\"><span class=\"show-answer collapsed\" style=\"cursor: pointer\" data-target=\"q66200\">Show Solution<\/span><\/p>\n<div id=\"q66200\" class=\"hidden-answer\" style=\"display: none\">\n<p>Solution<br \/>\n1. The perimeter is the distance around the figure. The perimeter is [latex]6[\/latex] inches.<br \/>\n2. The area is the surface covered by the figure. There are [latex]2[\/latex] square inch tiles so the area is [latex]2[\/latex] square inches.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/277\/2017\/04\/24223834\/CNX_BMath_Figure_09_04_008.png\" alt=\"A checkerboard is shown. It has 10 squares across the top and 5 down the side. The top and bottom each have two adjacent 1 inch labels across, the sides have 1 inch labels.\" \/><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"textbox key-takeaways\">\n<h3>try it<\/h3>\n<p><iframe loading=\"lazy\" id=\"ohm146926\" class=\"resizable\" src=\"https:\/\/ohm.lumenlearning.com\/multiembedq.php?id=146926&theme=oea&iframe_resize_id=ohm146926&show_question_numbers\" width=\"100%\" height=\"150\"><\/iframe><\/p>\n<\/div>\n<p>In the following video we show a similar example as the ones above.<\/p>\n<p><iframe loading=\"lazy\" id=\"oembed-1\" title=\"Determine the Perimeter and Area of a Square on a Grid\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/wguTQZRAlYY?feature=oembed&#38;rel=0\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-4444\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Original<\/div><ul class=\"citation-list\"><li>Question ID 146926, 146501. <strong>Authored by<\/strong>: Lumen Learning. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><\/ul><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>Determine the Perimeter and Area of a Square on a Grid. <strong>Authored by<\/strong>: James Sousa (mathispower4u.com). <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/youtu.be\/wguTQZRAlYY\">https:\/\/youtu.be\/wguTQZRAlYY<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><\/ul><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Specific attribution<\/div><ul class=\"citation-list\"><li>Prealgebra. <strong>Provided by<\/strong>: OpenStax. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em>. <strong>License Terms<\/strong>: Download for free at http:\/\/cnx.org\/contents\/caa57dab-41c7-455e-bd6f-f443cda5519c@9.757<\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":25777,"menu_order":5,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc-attribution\",\"description\":\"Prealgebra\",\"author\":\"\",\"organization\":\"OpenStax\",\"url\":\"\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"Download for free at http:\/\/cnx.org\/contents\/caa57dab-41c7-455e-bd6f-f443cda5519c@9.757\"},{\"type\":\"original\",\"description\":\"Question ID 146926, 146501\",\"author\":\"Lumen Learning\",\"organization\":\"\",\"url\":\"\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"Determine the Perimeter and Area of a Square on a Grid\",\"author\":\"James Sousa 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