Point O is the center of a circle. The measure of arc RS on this circle is 100°. What is the measure, in ROS degrees, of its associated angle?
","rationale_html":"The correct answer is 100. It’s given that point O is the center of a circle and the o measure of arc RS on the circle is 100 . It follows that points R and S lie on the circle. Therefore, OR and OS are radii of the circle. A central angle is an angle 39 SAT PRACTICE TEST #4 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 1 formed by two radii of a circle, with its vertex at the center of the circle. Therefore, ∠ ROS is a central angle. Because the degree measure of an arc is equal to the measure of its associated central angle, it follows that the measure, in degrees, of ∠ ROS is 100.
","correct_answer":["100"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[],"attribution":{"source_id":"cb_practice_pdf","source_name":"College Board full-length SAT practice tests (PDF)","rights_holder":"College Board","canonical_url":"https://satsuite.collegeboard.org/practice/practice-tests/paper","retrieved_from":"https://satsuite.collegeboard.org/practice/practice-tests/paper","attribution":"Full-length SAT practice tests 4–11 © College Board, published free at satsuite.collegeboard.org.","disclaimer":"Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.","license":"College Board copyright. Free to download; not licensed for redistribution.","redistributable":false,"item_count":905}}