The length of a rectangular field is 3 times the width If th

The length of a rectangular field is 3 times the width. If the area of the field is 300 square meters, find the two dimensions.

Solution

let the width = x

So, length = 3x

area = length * width

or, 300 = 3x * x

or, 300 = 3x²

or, x² = 100

or x = 10

So width = 10 metre

length = 30 metre