Question

We have enough material to build a fence around a station

that has a perimeter of 180 feet. The width of the rectangular
space must be 30 feet. What must the length be?
1: Drag the correct number of strips to build the model.
P
1
-
-
-
-
1
W

Answer 1

`60ft`

Explanation:

Use the formula for the perimeter of a rectangle.

`P=2l+2w`

`180=2l+2(30)`

`180=2l+60`

`180-60=2l`

`120=2l`

`(2l)/(2)=(120)/(2)`

`l=60`