A rectangular window glass measures 24 inches in length and 18 inches in width. What is th… — Armed Services Vocational Aptitude Battery (ASVAB)

A rectangular window glass measures $24$ inches in length and $18$ inches in width. What is the perimeter of the window glass, in inches?

The correct answer is

84

because the perimeter is the total distance around the boundary of the rectangle. Adding all four sides (

24 + 24 + 18 + 18

) or using the standard formula

P = 2L + 2W

gives

2(24) + 2(18) = 48 + 36 = 84

inches.

Identify the correct formula for the perimeter of a rectangle.

P = 2L + 2W

P = 2(L + W)

The perimeter measures the total continuous distance around the outside edge of a shape.

Substitute the given length (

L = 24

) and width (

W = 18

) into the formula.

P = 2(24) + 2(18)

Plugging the known values into the equation sets up the calculation.

Perform the multiplication and addition to find the total distance.

48 + 36 = 84

Evaluating the mathematical expression yields the final perimeter in inches.

Perimeter of Rectangles

Question