Find the curved surface area of a cone w

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 3D

Question:

Find the curved surface area of a cone whose radius of base is 7 cm and slant height is 8 cm. [Use π = $\frac{22}{7}$]

Options:

132 cm²

198 cm²

154 cm²

176 cm²

Correct Answer:

176 cm²

Explanation:

We know that,

Curved surface area = πrl

We have,

Radius of cone = r = 7 cm

Slant height of cone = l = 8 cm

Curved surface area of cone = $\frac{22}{7}$ × 7 × 8 = 176 cm²