Question

The perimeter of a rectangle is 48 cm and its length is 4 cm more than its width. Find the area of the rectangle.

1) 50
2) 100
3) 140
4) 200​

Answer 1

Answer:

3) 140

Step-by-step explanation:

Let the width of the rectangle be x cm

Therefore the length is (x+4) cm

A/Q,

2 {x+(x+4)} = 48

2 {2x + 4} = 48

4x + 8 = 48

4x = 48 - 8

4x = 40

Therefore, x = 40/4

= 10

So the width of the rectangle is 10cm

Therefore, length = (10+4) cm = 14cm

So the area of the rectangle is = (10*14) sq.cm

= 140 sq.cm