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The area of a circle inscribed in an equilateral triangle is

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Senior Manager
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The area of a circle inscribed in an equilateral triangle is [#permalink] New post 27 Mar 2004, 10:33
The area of a circle inscribed in an equilateral triangle is 48*pi cm^2. Find the Perimeter of the triangle?
a) 72*sqrt3
b) 48*sqrt3
c) 72
d) 36
e) None
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 [#permalink] New post 27 Mar 2004, 11:09
I believe 72 cm is the answer
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 [#permalink] New post 27 Mar 2004, 14:11
r = sqrt(48) = (a/2) tan30

3a = 6sqrt(3.48) = 72
  [#permalink] 27 Mar 2004, 14:11
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The area of a circle inscribed in an equilateral triangle is

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