Question

the area of a parallelogram is 15m2. if the height is 2.5m what is the length of the sides

Answer 1

You can not find ALL sides of any random parallelogram with a given height and area.

Answer 2

though you can find 2 of the sides, which are bases to the given height,

Use : Area = base * height.

Answer 3

as shubhamsrg said u can use that formula, where 15 = 2.5*S. S is one side of the of the parallelogram, since the lengths of each side are the same u have your answer

Answer 4

do u understand why it works?