alleryएक आयत की माप 15 m × 20 m है। इसके विकर्ण की लंबाई क्या है?
A30 m
B25 m
C20 m
D35 m
Answer & Solution
Correct answer: B. 25 m
विकर्ण 225 + 400 = 625 का वर्गमूल है, अर्थात √625 = 25 m।
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