Look at this square. Find the value of z.
Perimeter = 64 yards
You find the perimeter by adding the lengths of the edges.
In a square, all four sides are the same length.
Add the lengths of the sides:
z+z+z+z=64
4z=64
Divide both sides by 4:
z=16
Now look for the units. The units are yards.
z=16 yards.
