Question

The length of a rectangle is1cm more than it's width and its perimeter is14cm. then the area of the rectangle is​

Answer 1

Step-by-step explanation:

length of the rectangle is 1 + x ( x is width )

width =x

perimeter is 14 cm.

perimeter of rectangle = 2(l+w)

14=2 ( 1+x+x)

14=2+2x+2x

14=2+4x

2+4x=14

4x =14-2

4x=12

x=12/4

x=3

length = 1 +3 =4

width = 3

area of rectangle = l x w

4x 3 =12

hence, area of rectangle is 12 cm.