What is the perimeter of a square whose area is 81 dm2?
March 31, 2021 | education
| 1. To solve the problem, you need to know the length of the side, since the perimeter of the square is 4 times larger than it. Find out what the side of the square is.
√81 = 9 decimeters.
2. Let’s find its perimeter.
9 * 4 = 36 decimeters.
Answer: The perimeter of the square is 36 decimeters.
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