SOLUTION: the length of a rectangle is 1 cm less than 3 times the width. The rectangle has an area of 24 square cm. find the exact length of a diagonal of this rectangle

Question 729293: the length of a rectangle is 1 cm less than 3 times the width. The rectangle has an area of 24 square cm. find the exact length of a diagonal of this rectangle
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
x = length
y = width
x = -1+3y
d = diagonal

AREA,
FIND DIAGONAL, d.

Using area equation, first find y.

for practical purposes, . (used general quadratic solution formula).

Using formula just found for d, diagonal, , , the Diagonal.

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