(10x + 4) + (5x-4) ≈ 180
solve for x and you get x≈12
plug 12 in to 5x-4 and you get 56
Last option - angle BAF and FAD
X=41
a^2+b^2=c^2
9^2+40^2=x^2
If the base of the prism is five an all sides with a height of 15 the volume would be 375 for the prism
if the pyramid has a base width and length of five, like the prism, it would have a volume of 25
the whole shape/construct together has a volume of 400ft^3
