The area of the rectangle is 136 cm, find the length of the rectangle if its width is 8 cm.

The area of a rectangle (S) is equal to the product of its length (a) and width (b):

S = a * b.

Knowing the area and one of the sides of the rectangle, you can find its second side:

a = S: b,

b = S: a.

Let’s calculate the length of the rectangle, the area of which is 136 cm2, and the width is 8 cm:

a = 136: 8,

a = 17 cm.

Answer: the length of the rectangle is 17 cm.