A. 220 cm ² B. 154 cm ² C. 440 cm ² D. 1540 cm ²

Answer: (C) 440 cm ² CSA = 2π r h = 2 × 22/7 × 7 × 10 = 440 cm ².

The curved surface area of a cylinder of radius 7 cm and height 10 cm is ____ .

A. 220 cm\(^2\)

B. 154 cm\(^2\)

C. 440 cm\(^2\)

D. 1540 cm\(^2\)

Doubtly Asked 29 Oct 2026 Practice test ssc 10th Save WhatsApp Report

Best answer

Answer: (C) 440 cm\(^2\)

CSA \(= 2\pi r h = 2 \times \dfrac{22}{7} \times 7 \times 10 = 440\) cm\(^2\).

Doubtly AI · 29 Oct 2026 AI-verified · Nov 2026 Report

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