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2 years ago

Find the surface area of the cylinder and round to the nearest tenth. (Use the π button on your calculator)

Mathematics

1 answer:

Aleonysh [2.5K]2 years ago

6 0

The surface area of the cylinder with the given height and radius is 835.2 square inches

<h3>How to determine the surface area?</h3>

The given parameters are

Height, h = 12 inches; this is represented by the distance between the curved surfaces of the cylinder
Radius, r = 7 inches; this is represented by the distance between the center of the circle to its circumference

The surface area is then calculated using the following formula

A = 2πr² + 2πrh

Substitute the given values in the above equation

So, we have:

A = 2 * 3.14 * 7^2 + 2 * 3.14 * 7 * 12

Evaluate the exponents

A = 2 * 3.14 * 49 + 2 * 3.14 * 7 * 12

Evaluate the products

A = 307.72 + 527.52

Evaluate the sum

A = 835.2

Hence, the surface area of the cylinder with the given height and radius is 835.2 square inches

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<u>Alternative</u><u> </u><u>working</u><u>:</u>

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