Find the sides of a parallelogram if its perimeter is 56 cm and the sum of its three sides is 49 cm.
| February 18, 2021 | education
1) What is the first side of a parallelogram?
To find the first side, you need to subtract the sum of its three sides from the perimeter of the parallelogram.
56 – 49 = 7 cm.
2) How long is the second side of the parallelogram?
(56 – 2 * 7): 2 = (56 – 14): 2 = 42: 2 = 21 cm.
Answer: the sides of the parallelogram are 7 cm, 21 cm, 7 cm, 21 cm.
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