Question

Blake wraps a gift box in the shape of a triangular prism. The figure below shows a net for the gift box.

Answer 1

The figure consists of,

A rectange with dimension 11 in by 5 in.

Two triangles with base b = 5 in and height h = 8.

Rectangle with dimension 11 in by 8 in.

Rectangle with dimension 9.43 in by 11 in.

Determine the area of wrapping paper required.

`\begin{gathered} A=11\cdot5+2\cdot(1)/(2)\cdot5\cdot8+11\cdot8+9.43\cdot11 \\ =55+40+88+103.73 \\ =286.73 \end{gathered}`

Thus, wrapping paper Blake use is 286.73 square inches.