The perimeter of a square flower bed is 6 m 8 dm. What is the side of the flower bed?

The perimeter of a square whose opposite sides are equal is calculated by the formula:

P = 4a.

Provided that this value for such a figure is 6 m 8 dm, we express the side:

a = P: 4.

Let’s preliminarily represent the sum of all sides in one unit of measurement:

6 m 8 dm = 68 dm, assuming that 1 m = 10 dm.

a = 68: 4 = 17 dm or 1 m 7 dm.