In order to solve this problem, we need to find the second side of the rectangle. To do this, divide the area of the rectangle by the known side. So you need to find the partial numbers 12 and 4. Let’s make an example:
12: 4 = 3 cm;
Find the perimeter of the rectangle:
(4 + 3) * 2 = 14 cm;
Answer: the perimeter of the rectangle is 14 cm.
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