allery7 सेंमी (pi = 22/7) त्रिज्याच्या गोलाचो पृश्ठभाग सोदून काडात.
A154 cm²
B308 cm²
C1437 cm²
D616 cm²
Answer & Solution
Correct answer: D. 616 cm²
पृश्ठभागाचें क्षेत्रफळ 4 pi r वर्ग = 4 x (22/7) x 49 = 616 चौरस सेंमी.
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