Question

The length of a rectangle is 5 cm longer than its width.

If the perimeter of the rectangle is 42 cm, find its area.

Answer 1

The area is 104

Explanation:

Length: 5 + x

width: x

(5+x)*2=10+2x

x*2=2x

2x+10+2x=42

10+4x=42

-10 -10

4x=32

/4. /4

x=32

5+8=13

13*8=104