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అర్థవృత్తంలోని కోణం కొలత ఎంత?

A45°
B90°
C180°
D60°
Answer & Solution
Correct answer: B. 90°
వ్యాసం ద్వారా ఏర్పడే అంతర్లిఖిత కోణం లంబకోణం (Thales సిద్ధాంతం).
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