Question

The circumference of the base of a cylinder is 180 cm and its height is 30 cm. Find its curved
surface area.​

Answer 1

$\sf{\huge{\underline{\blue{Given :-}}}}$

• The circumference of the base of a cylinder is 180 .

• The height is 30 cm.

$\sf{\huge{\underline{\pink{To\:Find :-}}}}$

• The C.S.A of a cylinder.

$\sf{\huge{\underline{\purple{Answer :-}}}}$

The circumference of the base of a cylinder is 180 .

➝ 2 π r = 180

➝ r = $\dfrac{180}{2\pi}$ ____(1)

• The height is 30 cm.

We know , the C.S.A of a cylinder = 2 π r h

➝ 2 π × $\dfrac{180}{2\pi}$ × 30

➝ 180 × 30

➝ 5400 cm²

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