Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the area of the cover? Use = 3.14 and round the answer to the nearest square foot.

Question

Anya Reed

Mathematics

9 August, 06:03

Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the area of the cover? Use = 3.14 and round the answer to the nearest square foot.

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Answers (2)

Know the Answer?

Boris · Answer 1

The answer is 38 ft ...

Case Thompson · Answer 2

The cover would be a circle, and to find the area, the formula would be (pi) r^2. r stands for the radius, and a diameter (which is 7 for this problem) divided by 2 equals the radius.

The radius would be 3.5ft, because 7/2 is 3.5.

You would use the radius inside the formula:

A = (pi) r^2

A = (3.14) (3.5) ^2

A=38.465

38.465 rounded would be 38.5ftsquared