Find the side of a square if its perimeter is equal to the perimeter of a rectangle with sides of 7 cm and 9 cm.
| September 1, 2021 | education
Let’s calculate the perimeter of a rectangle with sides of 7 cm and 9 cm.Add the lengths of the two sides, and multiply their sum by 2.
Pp = (7 cm + 9 cm) * 2 = 32 cm.
The perimeter of the square is the same as the perimeter of the rectangle.
Pk = Pp = 32 cm.
A square has all sides of the same length, in order to calculate the side of a square, its perimeter must be divided by 4.
a = 32 cm ÷ 4 = 8 cm.
Answer: the side of the square is 8 cm.
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