The length of a rectangle is three centimeters less than the width. If the area of the rectangle is 54cm2, find the

dimensions of the rectangle.

Question

Mathematics

Glenn Sparks

14 November, 08:04

The length of a rectangle is three centimeters less than the width. If the area of the rectangle is 54cm2, find the

dimensions of the rectangle.

+5

Answers (1)

Know the Answer?

Payton Moss · Answer 1

w = 9, l = 6

Step-by-step explanation:

w=x

l=x-3

A = lw

54 = x (x-3)

54 = x^2-3x

0 = x^2-3x-54

0 = (x+6) (x-9)

x+6 = 0

x-9 = 0

x=-6, 9

x cannot be negative, x = 9

The length of a rectangle is three centimeters less than the width. If the area of the rectangle is 54cm2, find thedimensions of the rectangle.

The length of a rectangle is three centimeters less than the width. If the area of the rectangle is 54cm2, find the

dimensions of the rectangle.