# The width of a rectangle is 1/3 its length, l Which expression represents the perimeter of the rectangle?

##### 1 Answer

Dec 1, 2016

#### Answer:

#### Explanation:

Let the length of the rectangle be

Then we can say that the width is

Now we need to form an expression (equation) for the perimeter.For that, we use the formula

#color(blue)("Perimeter of a rectangle"=2(l+w)# #color(blue)("units"#

Where,

#l="length"#

#w="width"#

We know that the length is

Use the distributive formula

So, we can say that, the perimeter of the rectangle is