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# The area of a circle inscribed in an equilateral triangle is

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Senior Manager
Joined: 05 Feb 2004
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The area of a circle inscribed in an equilateral triangle is [#permalink]  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
Director
Joined: 13 Nov 2003
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I believe 72 cm is the answer
Senior Manager
Joined: 02 Mar 2004
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r = sqrt(48) = (a/2) tan30

3a = 6sqrt(3.48) = 72
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