The length of the rectangle is 1 m 5 cm, and the width is 7 times less.

The length of the rectangle is 1 m 5 cm, and the width is 7 times less. Find the side of a square whose perimeter is equal to the perimeter of this rectangle.

1) We translate the length of the rectangle into centimeters, knowing that 1 m = 100 cm:

1 m 5 cm = 100 cm + 5 cm = 105 cm.

2) Calculate the width of the rectangle:

105: 7 = 15 cm.

3) Find the perimeter of the rectangle (P):

P = 105 + 15 + 105 + 15 = 240 cm.

4) Calculate the side of a square if it is known that its perimeter is equal to the perimeter of a given rectangle:

a = P: 4,

a = 240: 4,

a = 60 cm.

Answer: the side of the square is 60 cm.

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