Question

What is the curved surface area of the cylinder if the radius of a circle cylinder is 7 cm and its height is 10 cm?

Answer 1

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Answer 2

$\huge \pink{ \bf Answer :- }$

• C.S.A of the cylinder is 440cm².

$\red{\sf Given :- }$

• The radius of a cylinder is 7 cm and its height is 10 cm.

$\red{\sf To Find :- }$

• Curved surface area of the cylinder.

$\huge \gray{\bf Solution :- }$

Here

• Radius of the cylinder is 7cm.

• Height of the cylinder is 10cm.

As we know that

Curved surface area of a cylinder is

2πrh

Put the values in the formula

Now,

⇒ C.S.A = 2 × 22/7 × 7 × 10

⇒ C.S.A = 2 × 22 × 10

⇒ C.S.A = 44 × 10

⇒ C.S.A = 440cm²

Hence, the C.S.A of the cylinder is 440cm².

Extra Shots :-

• Volume of cylinder = πr²h cubic units

• Total surface area of cylinder = 2πr (h + r) square units