The base area of a right circular cylind

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

The base area of a right circular cylinder is 16K cm³. Its height is 5 cm. Its curved surface area is

Options:

40π cm²

30π cm²

20π cm²

10π cm²

Correct Answer:

40π cm²

Explanation:

πr² = 16π ⇒ r = 4 cm
∴ Curved surface area = 2 × π × 4 × 5

= 40π cm²