First, find the area of the triangular base of the prism:
A = (a * b)/2
A = (22 * 26)/2
A = 572/2
A = 286
Then, multiply the area you just found by the height of the prism to find its volume:
V = A * h
V = 286 * 30
V = 8580 <----- this is the answer
I hope this helps. =)
