What is the total surface area of a solid hemisphere of radius 7 cm? Take \(\pi = \frac{22}{7}\).

A. 462 cm²

B. 308 cm²

C. 616 cm²

D. 154 cm²

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

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Answer: A. 462 cm²

Answer: (A) 462 cm²

TSA of a solid hemisphere = curved 2πr² + base πr² = 3πr² = 3 × \(\frac{22}{7}\) × 49 = 462 cm².

Trap: 308 cm² is only the curved surface.

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

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