The volume formula for a pyramid is V = (1/3)bh where b is the base area and h is the height. We are given the volume and base measurements (remember that area for squares and rectangles is length * width), so plug the values into the equation and solve for the height:
8477.3 = (1/3)*34*34h
8477.3=(1156/3)h
25431.9/1156 = h
h is approximately 22 meters