SOLUTION: An equilateral has a perimeter of 36 cm. Find its area to the nearest tenth.

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Question 868647: An equilateral has a perimeter of 36 cm. Find its area to the nearest tenth.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
IF equilateral triangle, s = 12cm
h =sqrt%2812%5E2+-+6%5E2%29+=+10.39 |Applying the Pythagorean Theorem
A =+%281%2F2%2912%2A10.39