Please help me solve this.

15 points ! ~ see if you know the answer to both you!

What’s the volume of the triangular prism?

Triangles abc and dfg are given. find the lengths of all other sides of these triangles if: b ∠a≅∠d, ab·dg=ac·df, ac=7 cm, bc=15 cm, fg=20 cm, and df-ab=3 cm.