Question

Find the curved surface area of a right circular cylinder, whose height is 21cm and

diameter of the base is 16cm.​

Answer 1

Step-by-step explanation:

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Answer 2

Answer :-

C.S.A. of cylinder = 1056 cubic cm.

Explanation :-

Given :

• Diameter of base = 16 cm.
• Height of base = 21 cm.

To Find :

• C.S.A. of right circular cylinder.

Solution :

Formula of C.S.A = 2πrh.

Here,

• Radius = D/2 = 16/2 = 8 cm.
• Height = 21 cm.

Substitute the Values.

$\implies\sf{2 \times \dfrac{22}{7} \times 21 \times 8}$

$\implies\sf{2 \times 22 \times3 \times 8}$

$\implies\sf{44 \times 24}$

$\implies\underline{\boxed{\sf\red{1056 \: c {m}^{3} }}} \:$

∴ C.S.A. of cylinder = 1056 cubic cm.