In order to find the perimeter of a square, it is necessary to sum up all of its sides or multiply the indicated value of the length of any side by 4.
15 + 15 + 15 + 15 = 60 cm.
15 * 4 = 60 cm.
Find the side length of the new square.
15 – 6 = 9 cm.
From this it follows that its perimeter will be:
9 * 4 = 36 cm.
Answer: The perimeters of the squares are 60 and 36 centimeters.
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