alleryπ का मान 22/7 मानते हुए, 7 सेमी त्रिज्या वाले वृत्त की परिधि क्या होगी?
A22 सेमी
B44 सेमी
C38 सेमी
D154 सेमी
Answer & Solution
Correct answer: B. 44 सेमी
परिधि = 2 × (22/7) × 7 = 44 सेमी।
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