Question

13. The sides of a rectangle are in the ratio 3 : 4 and its perimeter is 140 cm. Find its length and
breadth​

Answer 1

Answer:

Length and breadth are 30 cm and 40 cm respectively.

Step-by-step explanation:

Let the length and breadth be 3x and 4x respectively.

2(3x+4x) =140

14x=140

x=10

So,

l=3x=30 cm

b=4x=40 cm