# The length of the rectangle is 1m 25 cm, and the width is 5 times less.

March 26, 2021 | education

| **The length of the rectangle is 1m 25 cm, and the width is 5 times less. Find the side length of a square whose perimeter is equal to the perimeter of this rectangle?**

1. The length of the rectangle is 1 m 25 cm = 125 cm. The width of the rectangle is 5 times less than the length and is equal to:

125/5 = 25 cm.

2. The perimeter of the rectangle is:

P (rectangle) = 125 + 125 + 25 + 25 = 300 cm = 3 m;

3. Let the side of the square be x, then its perimeter P (square) = 4 * x. Since P (rectangle) = P (square), then:

4 * x = 300;

x = 300/4;

x = 75;

4. Answer: the length of the side of the square is 75 cm.

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