For perimeter, just add all the sides together, if the side matches the side in front of it, make that side the same number. and then add. <span />
Answer:
81π sq. in.
Step-by-step explanation:
A = 36π = 
= 36
r = 6 = radius of the mirror
Add 3 to the 6 to get the radius(R) including the frame
R = 9
A =
= 81π sq. in.
The answer is: "infinite line(s)" .
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