Question

Jim wants to win his classroom's gingerbread house decoratingcompetition. He will outline the front of the house with an edible ribbon.Using the figure below, determine the perimeter of the front of thehouse so Jim can cut the ribbon to the correct length.7.4 in3.4 in9 in

Answer 1

Jim decorates the front of the house with the ribbon.

In the figure, the dimension of the parts are given

The ribbon used to decorate the front of the house will be equal to the perimeter of the given figure.

Calculate the perimeter of the figure

$\begin{gathered} P=\text{ 2}\times7.4+2\times3.4+9\text{ } \\ P=30.6\text{ in.} \end{gathered}$

So Jim needs 30.6 in of ribbon to decorate the house.