Question

The length of a rectangle is greater than its breadth by 4cm and its perimeter is 20cm. Then, length and breadth of the rectangle​

Answer 1

Answer:

length of rectangle is 6 and breadth is4cm

Answer 2

Let the length and breadth of rectangle be x and length of rectangle is greater than breath by 4cm.

So, length=x+4

breath=x

We know that,

Perimeter of a rectangle=2( l+b)

=2(x+4+x)

=2(2x+4)

Breath=4x+8=20cm

=4x=20-8

=4x=12

=x=12/4

=x=3cm

Length=x+4

=3+4

=7cm

Hence, Length=2×7=14cm

Breath=2×3=6cm