Can someone me: fine the volume btw for #2

Number Two:
The formula to find the volume of a triangular prism is the area of the triangle/base multiplied by the height.
Finding the area of the base:
10×15=150×0.5=75
Now multiply it by its height.
75×25
1,875 m³
Number Four:
You need to multiply the width times the height times the length, or in any arrangements. Everything needs to get mutiplied together.
1×2.5
2.5×9
22.5 cm³

The answer to #2 would be 1,875 meters cubed. I hope this helps!