Respuesta :

Answer:

B

[tex]14\pi[/tex]

[tex]49\pi[/tex]

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]