i need help with this....thank you

Answer:
15.7 ft, 43.96 ft, 153.86 ft^2
Step-by-step explanation:
Circumference is [tex]C=2\pi r[/tex] (r is the radius).
If the diameter is 5 feet, the radius is 2.5 feet (half of 5).
[tex]C=2(3.14)(2.5)=15.7\text{ feet}[/tex]
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Diameter of pool = 14 feet. so radius = 7 feet.
[tex]C=2(3.14)(7)=43.96[/tex] feet
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Area of a circle: [tex]A=\pi r^2[/tex]
[tex]A=(3.14)(7^2)=(3.14)(49)=153.86\text{ ft}^2[/tex]