tinysauraus05
tinysauraus05 tinysauraus05
  • 03-05-2020
  • Mathematics
contestada

Find the exact area of a circle having the given circumference.
8 pi
A =

a)4√2 pi
b)16 pi
c)64 pi

Respuesta :

ItzMikeSS
ItzMikeSS ItzMikeSS
  • 03-05-2020

Answer: B

Step-by-step explanation:

[tex]C=8\pi[/tex]

[tex]C=2\pi r[/tex]

Solve for r.

[tex]r=\frac{C}{2\pi}[/tex]

[tex]r=\frac{8\pi}{2\pi} \\r=4[/tex]

The formula for the area is: [tex]A=\pi r^2[/tex]

[tex]A=\pi (4)^2\\A=16\pi[/tex]

Answer Link
camcamt18 camcamt18
  • 27-05-2020

Answer:

Answer is B

Step-by-step explanation:

The formula for the area is: A=\pi r^2

A=\pi (4)^2\\A=16\pi

Answer Link

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