Question

A triangular prism is shown.
What is the surface area of the triangular
prism?

Answer 1

Area= 840

Explanation:

Area= (20x13)x2+(10x12x1/2)x2+10x20

=520+120+200

=840

• Area=Two area of the triangle [13x20] + Two area of the rectangle + Under area (rectangle)- [10x20]