Posted by Ariel on Thursday, June 3, 2010 at 12:42pm.
V = 1/3 area of base * alt
area of triangular base = 1/2 s * h
Since it is equilateral, use Pythagorean theorem to find h.
h^2 + (1/2s)^2 = s^2
I'll let you do the calculations.
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