When finding the volume of a triangular prism, we multiply the area of the base x the height of the prism.

7cm on the bottom right side 2cm base and 3cm hight

First, calculate the area of the base of the triangular prism:

Area of triangle = 1/2 * base * height
Area of triangle = 1/2 * 2cm * 3cm
Area of triangle = 3 square cm

Next, find the volume of the triangular prism:

Volume of triangular prism = area of base * height
Volume of triangular prism = 3cm * 7cm
Volume of triangular prism = 21 cubic cm

So, the volume of the triangular prism is 21 cubic cm.