See the graph below. The other person was right, I just used the wrong line. You are supposed to use the line with a blank circle in the middle. I didn't notice that.
The volume of a triangular pyramid<span> can be found using the </span>formula<span> V = 1/3AH where A = area of the triangle base, and H = height of the </span>pyramid<span> or the distance from the </span>pyramid's<span> base to the apex.</span>