The sides of the rectangle are 25cm and 16cm. Find the side of a square whose perimeter is equal to the perimeter of this rectangle.

If the perimeters of the given rectangle and the square are equal, then you just need to find the perimeter of the rectangle.
We will find it by the formula P = 2 (a + b)
Then we substitute the numbers and get:
P = 2 (25 + 16) = 82
Answer: 82



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