alleryएक वृत्त की त्रिज्या 9 cm है। इसकी सबसे लंबी जीवा की लंबाई क्या है?
A18 cm
B9 cm
C12 cm
D15 cm
Answer & Solution
Correct answer: A. 18 cm
सबसे लंबी जीवा वृत्त का व्यास होती है, जो त्रिज्या की दोगुनी होती है, अतः 2 × 9 = 18 cm।
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