aundreyagrace aundreyagrace
  • 22-05-2020
  • Mathematics
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Given a circle with an area of 25 pi in^2
What is the exact circumference?

Given a circle with an area of 25 pi in2 What is the exact circumference class=

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rachelzee13ox9ev6 rachelzee13ox9ev6
  • 22-05-2020

Answer:

31.4

Step-by-step explanation:

C = 2πr OR C = πd

But, we need to find r first.

[tex]A = \pi r^2\\25\pi = \pi r^2\\\sqrt{25} = \sqrt{r^2} \\r=5\\\\C=2\pi r\\C=2\pi (5)\\C= 10\pi \\C= 31.4[/tex]

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