Question

A rectangle has a length of 3.6 in, and a perimeter of 16.8 in.

Enter the width of the rectangle, in decimal form, in the box.

Answer 1

Width = 4.8 inches

Explanation:

The perimeter of a rectangle is given by the formula:

`P=2l+2w`

Where

P is perimeter

l is length

w is width

Given length = 3.6 and perimeter = 16.8, we plug them in into the formula and figure out the width, w. Process shown below:

`P=2l+2w\\16.8=2(3.6)+2w\\16.8=7.2+2w\\16.8-7.2=2w\\9.6=2w\\w=(9.6)/(2)\\w=4.8`

Hence, the width is 4.8 inches