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Mathematics

Grade9

Easy

Question

Find the surface area of the cylinder.

471.24 square centimeters
157.08 square centimeters
314.16 square centimeters
296.72 square centimeters

hint Hint:

The surface area of the cylinder is $2 pi r left parenthesis r plus h right parenthesis$ , where r is the radius of the cylinder and h is the height of the cylinder.

The correct answer is: 471.24 square centimeters

The surface area of the cylinder is $2 pi r left parenthesis r plus h right parenthesis$ , where r is the radius of the cylinder and h is the height of the cylinder.
In this question we are given the height = $10 space c m$ and radius = $5 space c m$
Step1: Calculating the surface area of cylinder by putting the values of r and h in the formula of surface area of cylinder.
$2 pi r left parenthesis r plus h right parenthesis$
=> $2 cross times pi cross times 5 cross times left parenthesis 10 plus 5 right parenthesis$
=> $471.24 space s q. space c m$
So, the surface area of the cylinder is $471.24 space s q. space c m$ .

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