allery7 cm ત્રિજ્યા ધરાવતા ગોળાનું પૃષ્ઠફળ શોધો (pi = 22/7).
A154 cm²
B308 cm²
C1437 cm²
D616 cm²
Answer & Solution
Correct answer: D. 616 cm²
પૃષ્ઠફળ એ 4 pi r નો વર્ગ = 4 x (22/7) x 49 = 616 ચોરસ સેન્ટીમીટર છે.
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