This math topic focuses on the geometry of circles, specifically dealing with inscribed angles subtended by the same arc and related problems involving finding missing angles. It includes exercises that apply concepts like angle relationships within circles, enhancing skills in solving circle geometry problems. Each question presents specific angles in the circle setup and requires the calculation of a missing angle based on given measurements and geometric rules, providing a range of multiple-choice answers. This helps build proficiency in handling intermediate-level geometry questions.
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Find angle CRY in degrees given that DYR is 30º and CDY is 20º