Question

The attic shown is a triangular prism. Insulation will be placed inside the walls, not including the floor. Find the surface area that will be covered with insulation

Answer 1

`1,125\ ft^(2)`

Explanation:

we know that

The surface area of the triangular prism that will be covered with insulation is equal to the area of the two triangular faces plus the two lateral rectangular faces

so

`SA=2[(1)/(2)(15)(15)]+2[(30)(15)]= 1,125\ ft^(2)`