Question

I need help with this....thank you

Answer 1

15.7 ft, 43.96 ft, 153.86 ft^2

Explanation:

Circumference is
`C=2\pi r` (r is the radius).

If the diameter is 5 feet, the radius is 2.5 feet (half of 5).

`C=2(3.14)(2.5)=15.7\text{ feet}`

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Diameter of pool = 14 feet. so radius = 7 feet.

`C=2(3.14)(7)=43.96` feet

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Area of a circle:
`A=\pi r^2`

`A=(3.14)(7^2)=(3.14)(49)=153.86\text{ ft}^2`

Answer 2

B

`14\pi`

`49\pi`