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OpenStudy (anonymous):
An equilateral triangle has a altitude of 15m. What is the perimeter of the triangle?
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OpenStudy (anonymous):
45
OpenStudy (anonymous):
because equilateral means same on all sides
OpenStudy (anonymous):
so just do 15 x 3 and there you go
OpenStudy (anonymous):
|dw:1393384177428:dw| 3 * 30/root(3)
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