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The length of a rectangle is four times its width.

If the area of the rectangle is 144 ft, find its perimeter.

User Emax
by
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2 Answers

5 votes

Answer: 60

suppose: the width of a rectangle is x (x > 0)

⇒ The length of a rectangle is 4x

because the area of the rectangle is 144 ft

=> 4x.x = 144

⇔ x² = 144/4 = 36

⇒ x = 6

with x = 6 ⇒ The length of a rectangle is 4.6 = 24

the perimeter of the rectangle is (6 + 24).2 = 60

Explanation:

User Dinc
by
8.8k points
5 votes

Answer:

y = mx + c

since m = 0

c = 9

User Midnighthowlers
by
8.6k points

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