Using the net below, find the surface are of the triangular prism.
5 cm
3 cm
7 cm
7 cm
5 cm
5 cm
Surface Area
=
[?] cm2

106 cm³

Explanation:

A prism is a 3-dimensional shape with two identical shapes known as bases facing each other. A triangular prism is a prism with two identical triangles facing each other as well as having three rectangles.

Area of rectangle 1 = 7 cm * 5 cm = 35 cm²

Area of rectangle 2 = 7 cm * 5 cm = 35 cm²

Area of rectangle 3 = 7 cm * 3 cm = 21 cm²

Area of each triangle = 1/2 * 5 cm * 3 cm = 7.5 cm²

Surface area of prism = 2 * area of triangle + Area of rectangle 1 + Area of rectangle 2 + Area of rectangle 3

Surface area of prism = 2(7.5) + 35 + 35 + 21 = 106 cm³