Trouble finding the volume PLEASE HELP. Show work too

Answer:
width is given, 7 m
height =4m
volume = L× B×H
find the length by applying Pythagoras in the top face.
i.e. L=√(25²-7²)=24m
V=7×4×24=672m³
Answer:
4200
Step-by-step explanation:
so we need to find another side to solve this and we use Pythagorean theorem to do so. 25^2-7^2(625-49) is(576) 24^2 and so the other side is 24. now that we found the other side, we do 7 x 24 x 4(base(width x length) x height) to get 4200