{"id":"cb_question_bank:9605d736-8cf7-47fe-9cbb-7a5151e79bb8","source_id":"cb_question_bank","source_item_id":"9605d736-8cf7-47fe-9cbb-7a5151e79bb8","external_id":"0f1a7b12-733e-45ba-a7fc-021a951885f5","ibn":null,"question_id":"f1c1e971","program":"SAT","module":"math","domain_code":"S","domain":"Geometry and Trigonometry","skill_code":"S.D.","skill":"Circles","difficulty":"M","score_band":5,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"The measure of angle upper R is StartFraction 2 pi Over 3 EndFraction radians. The measure of angle upper T is StartFraction 5 pi Over 12 EndFraction radians greater than the measure of angle upper R . What is the measure of angle upper T , in degrees ?","stimulus":"","stimulus_html":null,"stem_html":"<p style=\"text-align: left;\">The measure of angle <math alttext=\"upper R\"><mi>R</mi>\n</math> is <math alttext=\"StartFraction 2 pi Over 3 EndFraction\"><mrow>\n\t<mfrac>\n\t\t<mrow>\n\t\t\t<mn>2</mn>\n\t\t\t<mi>π</mi>\n\t\t</mrow>\n\t\t<mn>3</mn>\n\t</mfrac>\n</mrow>\n</math> radians. The measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math> is <math alttext=\"StartFraction 5 pi Over 12 EndFraction\"><mrow>\n\t<mfrac>\n\t\t<mrow>\n\t\t\t<mn>5</mn>\n\t\t\t<mi>π</mi>\n\t\t</mrow>\n\t\t<mn>12</mn>\n\t</mfrac>\n</mrow>\n</math> radians greater than the measure of angle <math alttext=\"upper R\"><mi>R</mi>\n</math>. What is the measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math>, in&nbsp;<span style=\"text-decoration: underline;\">degrees</span>?</p>","rationale_html":"<p style=\"text-align: left;\">Choice C is correct. It’s given that the measure of angle <math alttext=\"upper R\"><mi>R</mi>\n</math> is <math alttext=\"StartFraction 2 pi Over 3 EndFraction\"><mfrac><mrow><mn>2</mn><mi>π</mi></mrow><mn>3</mn></mfrac></math> radians, and the measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math> is <math alttext=\"StartFraction 5 pi Over 12 EndFraction\"><mfrac><mrow><mn>5</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math> radians greater than the measure of angle <math alttext=\"upper R\"><mi>R</mi>\n</math>. Therefore, the measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math> is equal to <math alttext=\"StartFraction 2 pi Over 3 EndFraction plus StartFraction 5 pi Over 12 EndFraction\"><mfrac><mrow><mn>2</mn><mi>π</mi></mrow><mn>3</mn></mfrac><mo>+</mo><mfrac><mrow><mn>5</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math> radians. Multiplying <math alttext=\"StartFraction 2 pi Over 3 EndFraction\"><mfrac><mrow><mn>2</mn><mi>π</mi></mrow><mn>3</mn></mfrac></math> by <math alttext=\"four fourths\"><mfrac><mn>4</mn><mn>4</mn></mfrac></math> to get a common denominator with <math alttext=\"StartFraction 5 pi Over 12 EndFraction\"><mfrac><mrow><mn>5</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math> yields <math alttext=\"StartFraction 8 pi Over 12 EndFraction\"><mfrac><mrow><mn>8</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math>. Therefore, <math alttext=\"StartFraction 2 pi Over 3 EndFraction plus StartFraction 5 pi Over 12 EndFraction\"><mfrac><mrow><mn>2</mn><mi>π</mi></mrow><mn>3</mn></mfrac><mo>+</mo><mfrac><mrow><mn>5</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math> is equivalent to <math alttext=\"StartFraction 8 pi Over 12 EndFraction plus StartFraction 5 pi Over 12 EndFraction\"><mfrac><mrow><mn>8</mn><mi>π</mi></mrow><mn>12</mn></mfrac><mo>+</mo><mfrac><mrow><mn>5</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math>, or <math alttext=\"StartFraction 13 pi Over 12 EndFraction\"><mfrac><mrow><mn>13</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math>. Therefore, the measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math> is <math alttext=\"StartFraction 13 pi Over 12 EndFraction\"><mfrac><mrow><mn>13</mn><mi>π</mi></mrow><mn>12</mn></mfrac></math> radians. The measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math>, in degrees, can be found by multiplying its measure, in radians, by <math alttext=\"StartFraction 180 Over pi EndFraction\"><mfrac><mn>180</mn><mi>π</mi></mfrac></math>. This yields <math alttext=\"StartFraction 13 pi Over 12 EndFraction times StartFraction 180 Over pi EndFraction\"><mfrac><mrow><mn>13</mn><mi>π</mi></mrow><mn>12</mn></mfrac><mo>×</mo><mfrac><mn>180</mn><mi>π</mi></mfrac></math>, which is equivalent to <math alttext=\"195\"><mn>195</mn>\n</math> degrees. Therefore, the measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math> is <math alttext=\"195\"><mn>195</mn>\n</math> degrees.</p>\n<p style=\"text-align: left;\">Choice A is incorrect. This is the number of degrees that the measure of angle <math alttext=\"upper T\"><mi>T</mi>\n</math> is greater than the measure of angle <math alttext=\"upper R\"><mi>R</mi>\n</math>.</p>\n<p style=\"text-align: left;\">Choice B is incorrect. This is the measure of angle <math alttext=\"upper R\"><mi>R</mi>\n</math>, in degrees.</p>\n<p style=\"text-align: left;\">Choice D is incorrect and may result from conceptual or calculation errors.</p>","correct_answer":["C"],"has_media":false,"has_mathml":true,"has_table":false,"source_created_at":"2023-08-02T20:25:59.841000+00:00","source_updated_at":"2023-08-02T20:25:59.841000+00:00","options":[{"label":"A","content_html":"<p><math alttext=\"75\"><mn>75</mn>\n</math></p>","ord":0},{"label":"B","content_html":"<p><math alttext=\"120\"><mn>120</mn>\n</math></p>","ord":1},{"label":"C","content_html":"<p><math alttext=\"195\"><mn>195</mn>\n</math></p>","ord":2},{"label":"D","content_html":"<p><math alttext=\"390\"><mn>390</mn>\n</math></p>","ord":3}],"attribution":{"source_id":"cb_question_bank","source_name":"College Board digital SAT question bank (community dump)","rights_holder":"College Board","canonical_url":"https://satsuitequestionbank.collegeboard.org/","retrieved_from":"https://raw.githubusercontent.com/mdn522/sat-question-bank/main/data/cb-digital-questions.json","attribution":"SAT practice questions © College Board, from the official SAT Suite Question Bank. Retrieved via the community dump at github.com/mdn522/sat-question-bank.","disclaimer":"SAT® and PSAT/NMSQT® are trademarks registered by the College Board, which is not affiliated with, does not sponsor, and does not endorse this project.","license":"College Board copyright; source repository carries no licence. Local use only.","redistributable":false,"item_count":2017}}