Question

Misty is fencing her garden, which has the measurements shown below. The side that is 7.2 m long is against her house, so it does not need a fence. How much fencing material will she need to go around the rest of her garden?

Answer 1

In order to calculate the amount of material needed to fence the garden, we can calculate the perimeter of the garden.

The perimeter is the addition of all sides that conform a figure, then,

`\begin{gathered} P=6.2m+4.2m+2.8m+3m+3.4m+7.2m \\ P=26.8m \end{gathered}`

However, since the side against the house does not need fencing,

`\begin{gathered} fence=P-7.2m \\ fence=26.8m-7.2m \\ fence=19.6m \end{gathered}`

Answer:

there are 19.6m needed in order to fence the garden.