allery7 cm వ్యాసార్థం మరియు 5 cm ఎత్తు గల డ్రమ్ యొక్క వక్రతల వైశాల్యం ఎంత? (pi = 22/7)
A154 sq cm
B440 sq cm
C110 sq cm
D220 sq cm
Answer & Solution
Correct answer: D. 220 sq cm
వక్రతల వైశాల్యం = 2 pi r h = 2 x 22/7 x 7 x 5 = 220 చదరపు సెంటీమీటర్లు.
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