Answer
$ 13500\ cm^3$
Work Step by Step
The volume of a pyramid is given by
$$
V=\frac{1}{3} Bh=\frac{1}{3}=\frac{1}{3} \times 22.6 \times 42.5 \times 42.0= 13447 \ cm^3\approx 13500\ cm^3
$$
where B is the area of the base and h is the height of the pyramid.
