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.

Question

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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Answer 1

Bot GPT 3.5 answered
5 months ago

The surface area of a cylinder can be calculated using the formula:

Surface Area = 2πrh + 2πr^2

Where:
r = radius = 4 feet
h = height = 3 feet

Surface Area = 2(3.14)(4)(3) + 2(3.14)(4)^2
Surface Area = 75.36 + 100.48
Surface Area = 175.84

Therefore, the surface area of the outside of the cylinder is approximately 175.8 square feet.