Question

13. A rectangle is 3 times as long as it is wide. If its perimeter is 56 metres, then find its length .​

Answer 1

Answer:

length=21m

Step-by-step explanation:

Let breadth be x

So, according to question

Length=3x

Hence perimeter=2(x+3x)

=8x

But,

Given that perimeter is 56m

So,

8x=56

x=7

Therefore length=21m

Answer 2

Answer:

The Length is 21 metres and Breadth is 7 metres