To find the perimeter of any polygon just add the length of everyside. In this case you have 4 sides with a length of 12 in. so 12 + 12 + 12 + 12 = perimeter. or to simplify 4 * 12 = perimeter.
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To find the length of each side of the square, we need to divide the perimeter by 4 since a square has four equal sides. Therefore, if the perimeter is 24 inches, each side would be 24 inches divided by 4, which equals 6 inches. So, each side of the square would be 6 inches long.
A square is a four sided polygon with four right angles whose sides are all congruent. This means that the area of a square is equal to the length of one side squared. So a square with an area of 81 sq. in. has a side length of 9 inches. The perimeter is the distance around the outside of a figure. For a square, this is equal to four times the side length. Here 4 * 9 = 36. So, the perimeter of this square is 36 inches.
Each side would be 5" long, A = SideA x SideB 5 x 5 = 25
Well, darling, if the area of the square is 25m², then each side must be the square root of 25, which is 5m. Since a square has four equal sides, the perimeter would be 4 times the length of one side, giving us a sassy perimeter of 20m. Voilà!
The square root of 16 is 4, times 4 (since a square has 4 sides) is 16.