Find the width of a rectangle with a perimeter of 90 and a length of 15.

Solution:

The perimeter of a rectangle is the total length or distance of its boundary on all sides.

The perimeter of a rectangle is a linear measure and has the same linear units of meters, feet, inches, or yards. 

Given, length of a rectangle = 15 units.

Perimeter of rectangle = 90 units.

We have to find the width of the rectangle.

Perimeter = 2(Length + Width)

90 = 2(15 + Width)

15 + Width = 90/2

15 + Width = 45

Width = 45 - 15

Width = 30 units.

Therefore, the width is 30 units.

Find the width of a rectangle with a perimeter of 90 and a length of 15.

Summary:

The width of a rectangle with a perimeter of 90 and a length of 15 is 30 units.