Answer:
The volume of the rectangular prism is

The volume of the triangular prism is

Explanation:
step 1
Find the volume of the rectangular prism
The volume of rectangular prism is equal to


step 2
Find the volume of the triangular prism
The volume of triangular prism is equal to


step 3
we know that
The volume of the rectangular prism is 10 cubic feet more than the volume of the right triangular prism

substitute the given values and solve for x




therefore
The volume of the rectangular prism is
----->

The volume of the triangular prism is
----->
