Question

The rato of two adjecent sides of a rectangle is 7:11

Answer 1

Answer:

Let the length and breadth be x ie.11x and 10x

Perimeter=84 cm

x=as given below

84=2×(11x+10x)

84/2=11x + 10x

42=21x

42/21=x

x=2

Now let's find length and breadth by putting the values..............

Length=11×2=22cm

Breadth=10×2=20cm

•Check..........

=2(22+20)

=2(42)

=84 as given.

Means the answer is right.

Hope it helped.................