alleryहें . अर्दगोलाकार घुमटाची त्रिज्या 7 cm आसता. ताच्या वक्र आवरणाक कितलें साहित्य जाय? π = 22/7 वापरात.
A308 cm²
B154 cm²
C462 cm²
D616 cm²
Answer & Solution
Correct answer: A. 308 cm²
हें .
गोलार्धाचें वक्र क्षेत्रफळ 2πr² = 2 × (22/7) × 49 = 308 सेंमी
² हें नांव.
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