A cylinder has radius 5 cm and height 12 cm. What is the total surface area of the cylinder?

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Question

A cylinder has radius 5 cm and height 12 cm. What is the total surface area of the cylinder?

Accepted Answer

534.07 cm² — Total surface area = 2πr² + 2πrh = 2π(25) + 2π(5)(12) = 50π + 120π = 170π ≈ 534.07 cm². Option B omits one circular face (uses πr² + 2πrh). Option C uses only the curved surface area 2πrh = 120π ≈ 376.99 cm² incorrectly reassigned. Option D uses 2πr(r + h) with an arithmetic error substituting diameter instead of radius.

Answer

471.24 cm²

Answer

534.07 cm²

Answer

376.99 cm²

Answer

628.32 cm²

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