NECO 2022 · Paper 1 · Q26

The perimeter of a rectangle is 44 m and its area is $120\text{ m}^2$ . Find the dimensions of the rectangle.

Worked solution (try it first)

Half the perimeter is the length plus the width: $l + w = 22$ .
The area gives $lw = 120$ .
Two numbers that add to 22 and multiply to 120 are 12 and 10, so the rectangle is 12 m by 10 m, option B.