{"id":13768,"date":"2018-06-14T23:49:49","date_gmt":"2018-06-14T23:49:49","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/ccbcmd-math\/chapter\/solutions-4\/"},"modified":"2021-11-22T21:21:55","modified_gmt":"2021-11-22T21:21:55","slug":"solutions-angles","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/chapter\/solutions-angles\/","title":{"raw":"Solutions: Angles","rendered":"Solutions: Angles"},"content":{"raw":"<h2>Solutions to Try Its<\/h2>\r\n1.\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234925\/CNX_Precalc_Figure_05_01_0092.jpg\" alt=\"Graph of a 240 degree angle.\" \/>\r\n\r\n2.\u00a0[latex]\\frac{3\\pi }{2}[\/latex]\r\n\r\n3.\u00a0\u2212135\u00b0\r\n\r\n4.\u00a0[latex]\\frac{7\\pi }{10}[\/latex]\r\n\r\n5.\u00a0[latex]\\alpha =150^\\circ [\/latex]\r\n\r\n6.\u00a0[latex]\\beta =60^\\circ [\/latex]\r\n\r\n7.\u00a0[latex]\\frac{7\\pi }{6}[\/latex]\r\n\r\n8.\u00a0[latex]\\frac{215\\pi }{18}=37.525\\text{ units}[\/latex]\r\n\r\n9.\u00a01.88\r\n\r\n10.\u00a0[latex]\\frac{-3\\pi }{2}[\/latex]\u00a0rad\/s\r\n\r\n11.\u00a01655 kilometers per hour\r\n<h2>Solutions to Odd-Numbered Exercises<\/h2>\r\n1.\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234927\/CNX_Precalc_Figure_05_01_201.jpg\" alt=\"Graph of a circle with an angle inscribed, showing the initial side, terminal side, and vertex.\" \/>\r\n\r\n3.\u00a0Whether the angle is positive or negative determines the direction. A positive angle is drawn in the counterclockwise direction, and a negative angle is drawn in the clockwise direction.\r\n\r\n5.\u00a0Linear speed is a measurement found by calculating distance of an arc compared to time. Angular speed is a measurement found by calculating the angle of an arc compared to time.\r\n\r\n7.\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234930\/CNX_Precalc_Figure_05_01_203.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/>\r\n\r\n9.\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234932\/CNX_Precalc_Figure_05_01_205.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/>\r\n\r\n11.\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234935\/CNX_Precalc_Figure_05_01_207.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/>\r\n\r\n13.\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234937\/CNX_Precalc_Figure_05_01_209.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/>\r\n\r\n15.\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234941\/CNX_Precalc_Figure_05_01_211.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/>\r\n\r\n17.\u00a0240\u00b0<span id=\"fs-id1165133402094\">\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234944\/CNX_Precalc_Figure_05_01_213.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/><\/span>\r\n\r\n19.\u00a0[latex]\\frac{4\\pi }{3}[\/latex]<span id=\"fs-id1165135628464\">\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234946\/CNX_Precalc_Figure_05_01_215.jpg\" alt=\"Graph of a circle showing the equivalence of two angles.\" \/><\/span>\r\n\r\n21.\u00a0[latex]\\frac{2\\pi }{3}[\/latex]<span id=\"fs-id1165134374733\">\r\n<img src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234948\/CNX_Precalc_Figure_05_01_217.jpg\" alt=\"Graph of a circle showing the equivalence of two angles.\" \/><\/span>\r\n\r\n23.\u00a0[latex]\\frac{7\\pi }{2}\\approx 11.00{\\text{ in}}^{2}[\/latex]\r\n\r\n25.\u00a0[latex]\\frac{81\\pi }{20}\\approx 12.72{\\text{ cm}}^{2}[\/latex]\r\n\r\n27.\u00a020\u00b0\r\n\r\n29.\u00a060\u00b0\r\n\r\n31.\u00a0\u221275\u00b0\r\n\r\n33.\u00a0[latex]\\frac{\\pi }{2}[\/latex] radians\r\n\r\n35.\u00a0[latex]-3\\pi [\/latex] radians\r\n\r\n37.\u00a0[latex]\\pi [\/latex] radians\r\n\r\n39.\u00a0[latex]\\frac{5\\pi }{6}[\/latex] radians\r\n\r\n41.\u00a0[latex]\\frac{5.02\\pi }{3}\\approx 5.26[\/latex] miles\r\n\r\n43.\u00a0[latex]\\frac{25\\pi }{9}\\approx 8.73[\/latex] centimeters\r\n\r\n45.\u00a0[latex]\\frac{21\\pi }{10}\\approx 6.60[\/latex] meters\r\n\r\n47.\u00a0104.7198 cm2\r\n\r\n49.\u00a00.7697 in2\r\n\r\n51.\u00a0250\u00b0\r\n\r\n53.\u00a0320\u00b0\r\n\r\n55.\u00a0[latex]\\frac{4\\pi }{3}[\/latex]\r\n\r\n57.\u00a0[latex]\\frac{8\\pi }{9}[\/latex]\r\n\r\n59.\u00a01320 rad 210.085 RPM\r\n\r\n61.\u00a07 in.\/s, 4.77 RPM, 28.65 deg\/s\r\n\r\n63.\u00a0[latex]1,809,557.37\\text{ mm\/min}=30.16\\text{ m\/s}[\/latex]\r\n\r\n65.\u00a0[latex]5.76[\/latex]\u00a0miles\r\n\r\n67.\u00a0[latex]120^\\circ [\/latex]\r\n\r\n69.\u00a0794 miles per hour\r\n\r\n71.\u00a02,234 miles per hour\r\n\r\n73.\u00a011.5 inches","rendered":"<h2>Solutions to Try Its<\/h2>\n<p>1.<br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234925\/CNX_Precalc_Figure_05_01_0092.jpg\" alt=\"Graph of a 240 degree angle.\" \/><\/p>\n<p>2.\u00a0[latex]\\frac{3\\pi }{2}[\/latex]<\/p>\n<p>3.\u00a0\u2212135\u00b0<\/p>\n<p>4.\u00a0[latex]\\frac{7\\pi }{10}[\/latex]<\/p>\n<p>5.\u00a0[latex]\\alpha =150^\\circ[\/latex]<\/p>\n<p>6.\u00a0[latex]\\beta =60^\\circ[\/latex]<\/p>\n<p>7.\u00a0[latex]\\frac{7\\pi }{6}[\/latex]<\/p>\n<p>8.\u00a0[latex]\\frac{215\\pi }{18}=37.525\\text{ units}[\/latex]<\/p>\n<p>9.\u00a01.88<\/p>\n<p>10.\u00a0[latex]\\frac{-3\\pi }{2}[\/latex]\u00a0rad\/s<\/p>\n<p>11.\u00a01655 kilometers per hour<\/p>\n<h2>Solutions to Odd-Numbered Exercises<\/h2>\n<p>1.<br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234927\/CNX_Precalc_Figure_05_01_201.jpg\" alt=\"Graph of a circle with an angle inscribed, showing the initial side, terminal side, and vertex.\" \/><\/p>\n<p>3.\u00a0Whether the angle is positive or negative determines the direction. A positive angle is drawn in the counterclockwise direction, and a negative angle is drawn in the clockwise direction.<\/p>\n<p>5.\u00a0Linear speed is a measurement found by calculating distance of an arc compared to time. Angular speed is a measurement found by calculating the angle of an arc compared to time.<\/p>\n<p>7.<br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234930\/CNX_Precalc_Figure_05_01_203.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/><\/p>\n<p>9.<br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234932\/CNX_Precalc_Figure_05_01_205.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/><\/p>\n<p>11.<br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234935\/CNX_Precalc_Figure_05_01_207.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/><\/p>\n<p>13.<br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234937\/CNX_Precalc_Figure_05_01_209.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/><\/p>\n<p>15.<br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234941\/CNX_Precalc_Figure_05_01_211.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/><\/p>\n<p>17.\u00a0240\u00b0<span id=\"fs-id1165133402094\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234944\/CNX_Precalc_Figure_05_01_213.jpg\" alt=\"Graph of a circle with an angle inscribed.\" \/><\/span><\/p>\n<p>19.\u00a0[latex]\\frac{4\\pi }{3}[\/latex]<span id=\"fs-id1165135628464\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234946\/CNX_Precalc_Figure_05_01_215.jpg\" alt=\"Graph of a circle showing the equivalence of two angles.\" \/><\/span><\/p>\n<p>21.\u00a0[latex]\\frac{2\\pi }{3}[\/latex]<span id=\"fs-id1165134374733\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/3360\/2018\/06\/14234948\/CNX_Precalc_Figure_05_01_217.jpg\" alt=\"Graph of a circle showing the equivalence of two angles.\" \/><\/span><\/p>\n<p>23.\u00a0[latex]\\frac{7\\pi }{2}\\approx 11.00{\\text{ in}}^{2}[\/latex]<\/p>\n<p>25.\u00a0[latex]\\frac{81\\pi }{20}\\approx 12.72{\\text{ cm}}^{2}[\/latex]<\/p>\n<p>27.\u00a020\u00b0<\/p>\n<p>29.\u00a060\u00b0<\/p>\n<p>31.\u00a0\u221275\u00b0<\/p>\n<p>33.\u00a0[latex]\\frac{\\pi }{2}[\/latex] radians<\/p>\n<p>35.\u00a0[latex]-3\\pi[\/latex] radians<\/p>\n<p>37.\u00a0[latex]\\pi[\/latex] radians<\/p>\n<p>39.\u00a0[latex]\\frac{5\\pi }{6}[\/latex] radians<\/p>\n<p>41.\u00a0[latex]\\frac{5.02\\pi }{3}\\approx 5.26[\/latex] miles<\/p>\n<p>43.\u00a0[latex]\\frac{25\\pi }{9}\\approx 8.73[\/latex] centimeters<\/p>\n<p>45.\u00a0[latex]\\frac{21\\pi }{10}\\approx 6.60[\/latex] meters<\/p>\n<p>47.\u00a0104.7198 cm2<\/p>\n<p>49.\u00a00.7697 in2<\/p>\n<p>51.\u00a0250\u00b0<\/p>\n<p>53.\u00a0320\u00b0<\/p>\n<p>55.\u00a0[latex]\\frac{4\\pi }{3}[\/latex]<\/p>\n<p>57.\u00a0[latex]\\frac{8\\pi }{9}[\/latex]<\/p>\n<p>59.\u00a01320 rad 210.085 RPM<\/p>\n<p>61.\u00a07 in.\/s, 4.77 RPM, 28.65 deg\/s<\/p>\n<p>63.\u00a0[latex]1,809,557.37\\text{ mm\/min}=30.16\\text{ m\/s}[\/latex]<\/p>\n<p>65.\u00a0[latex]5.76[\/latex]\u00a0miles<\/p>\n<p>67.\u00a0[latex]120^\\circ[\/latex]<\/p>\n<p>69.\u00a0794 miles per hour<\/p>\n<p>71.\u00a02,234 miles per hour<\/p>\n<p>73.\u00a011.5 inches<\/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-13768\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Specific attribution<\/div><ul class=\"citation-list\"><li>Precalculus. <strong>Authored by<\/strong>: OpenStax College. <strong>Provided by<\/strong>: OpenStax. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/cnx.org\/contents\/fd53eae1-fa23-47c7-bb1b-972349835c3c@5.175:1\/Preface\">http:\/\/cnx.org\/contents\/fd53eae1-fa23-47c7-bb1b-972349835c3c@5.175:1\/Preface<\/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>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":23485,"menu_order":8,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc-attribution\",\"description\":\"Precalculus\",\"author\":\"OpenStax College\",\"organization\":\"OpenStax\",\"url\":\"http:\/\/cnx.org\/contents\/fd53eae1-fa23-47c7-bb1b-972349835c3c@5.175:1\/Preface\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"}]","CANDELA_OUTCOMES_GUID":"","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-13768","chapter","type-chapter","status-publish","hentry"],"part":13723,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/pressbooks\/v2\/chapters\/13768","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/wp\/v2\/users\/23485"}],"version-history":[{"count":5,"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/pressbooks\/v2\/chapters\/13768\/revisions"}],"predecessor-version":[{"id":16449,"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/pressbooks\/v2\/chapters\/13768\/revisions\/16449"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/pressbooks\/v2\/parts\/13723"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/pressbooks\/v2\/chapters\/13768\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/wp\/v2\/media?parent=13768"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/pressbooks\/v2\/chapter-type?post=13768"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/wp\/v2\/contributor?post=13768"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/ccbcmd-math-1\/wp-json\/wp\/v2\/license?post=13768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}