pyramid

Your answer is incorrect!!!

Pyramid height    h = 6 inches

Pyramid base     B = 1/2(6*6) = 18 sq inches

Pyramid volume      V = 1/3(B*h)               

V = 1/3(18*6) = 36 cubic inches

yes, so the volume of a triangular pyramid is \(\dfrac{hs^2}{4\sqrt{3}}\) where h is the height and s is the base side length.

in your case, s = 6, and h = 6. this gives \(\boxed{18\sqrt{3}}\) as your answer

and that's pretty good