alleryએક વૃત્તાંશનો ખૂણો 90° અને ત્રિજ્યા 14 cm છે. pi = 22/7 નો ઉપયોગ કરીને, તેનું ક્ષેત્રફળ કેટલું થશે?
A124 sq cm
B154 sq cm
C77 sq cm
D308 sq cm
Answer & Solution
Correct answer: B. 154 sq cm
સંપૂર્ણ વર્તુળના ક્ષેત્રફળ 616 નો ચોથો ભાગ 154 ચોરસ સેન્ટીમીટર આપે છે.
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