SOLUTION: Find the area of an equilateral triangle with side 12.

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Question 478606: Find the area of an equilateral triangle with side 12.
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi,



equilateral triangle with side of 12. | Note: Altitude bisects the base 

h = sqrt(12^2 - 6^2) = sqrt(108) = 6sqrt(3)

A = (1/2)b*h = (1/2)12*6sqrt(3) = 36sqrt(3)