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ਇੱਕ ਚੱਕਰ ਦਾ ਖੇਤਰਫਲ 154 ਵਰਗ ਸੈ.ਮੀ. (pi = 22/7) ਹੁੰਦਾ ਹੈ। ਇਸਦਾ ਵਿਆਸ ਕੀ ਹੈ?

A22 cm
B14 cm
C7 cm
D28 cm
Answer & Solution
Correct answer: B. 14 cm
ਰੇਡੀਅਸ ਵਰਗ 154 x 7/22 = 49 ਹੈ, ਇਸ ਲਈ ਰੇਡੀਅਸ 7 ਸੈਂਟੀਮੀਟਰ ਅਤੇ ਵਿਆਸ 14 ਸੈਂਟੀਮੀਟਰ ਹੈ।
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