1. Let’s calculate the length of the second side of the parallelogram if it is known that it is 4 centimeters shorter than its first side, and the length of the first side is 12 centimeters:
12 – 4 = 8.
2. The perimeter of a parallelogram can be calculated using the following formula:
P = 2 (a + b), where a and b are two sides of the parallelogram, and P is the perimeter.
3. Let us find what the perimeter of this parallelogram is equal to:
2 x (12 + 8) = 20 x 2 = 40 centimeters.
Answer: The perimeter of the parallelogram is 40 centimeters.
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