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Mathematics

Grade-8

Easy

Question

Find the Total Surface area of the cylinder.

62.8m
477.52 cm²
235.5 cm³
942 cm²

hint Hint:

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

The correct answer is: 477.52 cm²

The total surface area of the cylinder is $2 pi r left parenthesis h plus r right parenthesis$ , where r is the radius of the cylinder and h is the height of the cylinder.
In this question we are given the height = $15 space c m$ and radius = $4 space c m$
Step1: Calculating the total surface area of cylinder by putting the values of r and h in the formula of total surface area of cylinder.
$2 pi r left parenthesis h plus r right parenthesis$
=> $2 cross times pi cross times 4 cross times left parenthesis 15 plus 4 right parenthesis$
=> $477.52 space c m squared$
So, the total surface area of the cylinder is $477.52 space c m squared$ .

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