A prism has a square base whose side is 5 cm. Its height is 8 cm. Find its total surface area (in sq cm).
Explanation:
Total surface area of a prism = (Base perimeter) × height + 2 × (Base area)
∴ TSA = (4 × 5) × 8 + 2 × 52.
⇒ TSA = 160 + 50 = 210 cm2.
Hence, option (c).
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