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April 21, 2014

April 21, 2014

Posted by **audrey** on Tuesday, May 17, 2011 at 9:26pm.

I don't understand how to solve this problem. Please explain and show me how step-by-step. tHANK YOU!

- math -
**Ms. Sue**, Tuesday, May 17, 2011 at 9:34pmYou need to find the diameter of each pie.

You know the area.

A = pi * r^2

50.24 = 3.14 * r^2

50.24 / 3.14 = r^2

16 = r^2

4 = r

Each pie has a diameter of 8 inches.

- math -
**audrey**, Tuesday, May 17, 2011 at 9:43pmwait then what is the 4 for? please explaina little more

- math -
**Ms. Sue**, Tuesday, May 17, 2011 at 9:57pmr = 4 means the radius equals 4 inches.

The diameter is twice the radius.

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