Question
Jan Villaroel
Topic: Geometry Posted 7 months ago
Adrian is painting the outside of a cylinder that he plans to use as a coffee table. The cylinder has a radius of 4 feet and a height of 3 feet

Adrian is painting the outside of a cylinder that he plans to use as a coffee table. The cylinder has a radius of 4 feet and a height of 3 feet. Adrian wants to paint all around the outside of the cylinder, including the top and bottom faces. In order to understand how much paint is needed, he wants to know the surface are of the outside of the cylinder. What is the surface area of the cylinder, measured in square feet? Use 3.14 for pi and round your answer to the nearest tenth.


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Koala Tutor
May 8, 2024
Koala Ai Support

The surface area of a cylinder is given by the formula 2πrh + 2πr^2, where r is the radius and h is the height. Substituting the given values, we get:

Surface area = 2*3.14*4*3 + 2*3.14*4^2
Surface area = 75.36 + 100.48
Surface area = 175.84 square feet

Rounded to the nearest tenth, the surface area is approximately 175.8 square feet.

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