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अर्धवर्तुळात आंतरलिखित केलेल्या कोनाचे माप किती असते?

A45°
B90°
C180°
D60°
Answer & Solution
Correct answer: B. 90°
व्यासाने आंतरित केलेला आंतरलिखित कोन काटकोन असतो (Thales' theorem).
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