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अर्धवृत्त में बने कोण का मान कितना होता है?

A45°
B90°
C180°
D60°
Answer & Solution
Correct answer: B. 90°
व्यास द्वारा वृत्त पर अंतरित कोण एक समकोण (90°) होता है (थेल्स प्रमेय)।
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