Question

A rectangle has an area of 54 square centimeters. The width is 3 more

than 1 times the length. Find the length and width, in centimeters, of the
triangle.

Answer 1

W = 6

L = 9

Explanation:

area = 54 = L x W

L = W + 3

substitute for L:

54 = W(W + 3)

W² + 3W = 54

W² + 3W - 54 = 0

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

W = 6

L = 6 + 3 = 9