Question

Find the curved surface area of a cone whose base is 6cm and slant height is 12cm

Answer 1

Step-by-step explanation:

C.S.A of a cone = $\pi rl$

Given:-

b = 6cm, l = 12cm

r = b/2 = 6/2 = 3

C.S.A = 22/7 * 3 * 12 = 113.142857

Answer 2

Step-by-step explanation:

Given :

Base of a cone (r) = 6cm

Slant height (l) = 12cm

To find :

Curved surface area of cone.

Solution :

C.S.A of cone :

• πrl

⇒ 3.14 × 6 × 12

⇒ 3.14 × 72

⇒ 226.08 cm²

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