alleryत्रिज्या r आणि उंची h असलेल्या लंबवृत्तचितीचे वक्रपृष्ठफळ कोणते सूत्र दर्शवते?
Api * r^2
B2pi * r * h
Cpi * r^2 * h
D4pi * r^2
Answer & Solution
Correct answer: B. 2pi * r * h
लंबवृत्तचितीचे वक्र पृष्ठफळ 2 * pi * r * h या सूत्राने दिले जाते.
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