Question

3) Write correct numbers in the boxes length is 3 times the breadth.
I am a rectangle
My perimetger
is 40 cm.
Breadth is x​

Answer 1

Step-by-step explanation:

length= 3b

breadth= b

perimeter of rectangle = 2(l+b)

= 2(3b+b)

= 2(4b)

= 8b

given 8b= 40

b= 5cm

l= 3b= 15 cm

I hope it helps you

thanks