Answer:
5cm
Explanation:
pr (perimeter for rectangle) = 2 x 7 + 2 x 3
pr = 14 + 6
pr = 20cm
a square has 4 equal sides
ss (side-length of square) = 20/4
ss = 5
Taking the breath as a Side of the Square...
The side lenght of spuare =3
All sides are equal in square
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