If the radius of a circle is increased by 20%, by what percent does its area increase?

A. 21%

B. 44%

C. 40%

D. 20%

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cgl Save WhatsApp Report

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Answer: B. 44%

Answer: (B) 44%

Area ∝ r². Shortcut: 20 + 20 + \(\frac{20 \times 20}{100}\) = 44%.

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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