SOLUTION: A circular mirror is surrounded by a square metal frame. The radius of the circular mirror is 3x. The side length of the metal frame is 15x. What is the area of the metal frame?

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Question 408878: A circular mirror is surrounded by a square metal frame. The radius of the circular mirror is 3x. The side length of the metal frame is 15x. What is the area of the metal frame?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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A circular mirror is surrounded by a square metal frame.
The radius of the circular mirror is 3x.
The side length of the metal frame is 15x.
What is the area of the metal frame?
:
Find the area of the whole thing:
(15x)^2 = 225x^2
:
Find the area of the mirror
pi%2A%283x%29%5E2+=+28.27x%5E2
:
Find the metal area surrounding the mirror
225x^2 - 28.27x^2 = 196.73x^2