A kite has a perimeter of 38 in. If the length of one side is 8 in, what could be the length of one of the other sides?

Assume that the first side of the kite is x and that the second side is y.

The perimeter of the kite is calculated using the following rule:

perimeter = 2 (x+y)

We are given that:

perimeter = 38 in

one of the sides (let it be x) = 8 in

Substitute with the givens in the above equation to get the other side (y) as follows:

38 = 2 (8+y)

19 = 8+y

y = 19-8 = 11 in