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igomit [66]
3 years ago
11

The length of a rectangle is four times its width.

Mathematics
1 answer:
svetlana [45]3 years ago
7 0

Answer:

9 and 36 m

Step-by-step explanation:

If the length of the rectangle is 4x the width, then we have that: L = 4W

Use the formula for the perimeter of the rectangle to find width <em>W</em>.

2L + 2W = P

2 * 4W + 2W = 90

8W + 2W = 90

10W = 90

W = 9 m

Find length <em>L</em>.

L = 4 x 9 = 36 m

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