When finding the volume of a triangular prism, first we must find the area of the base.

What is the area of the base of the triangular prism?

Height = 3 cm

Base = 2 cm

Length = 7cm

To find the area of the base of the triangular prism, we first need to calculate the area of the triangle formed by the base.

The formula for the area of a triangle is:

Area = 1/2 * base * height

In this case, the base of the triangle is 2 cm and the height is 3 cm. Plugging these values into the formula, we get:

Area = 1/2 * 2 cm * 3 cm
Area = 3 cm^2

Therefore, the area of the base of the triangular prism is 3 square centimeters.