The curved surface area of a hemisphere of radius \(r\) is

A. \(3\pi r^2\)

B. \(2\pi r^2\)

C. \(4\pi r^2\)

D. \(\pi r^2\)

Doubtly AI Asked 24 Oct 2026 AI-verified · Oct 2026 ssc 10th Save WhatsApp Report

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Best answer

Answer: B. \(2\pi r^2\)

It is half the surface area of a sphere: \(\frac{1}{2} \times 4\pi r^2 = 2\pi r^2\).

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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