Question

What will happen to the perimeter of a rectangle if its length is doubled and breadth aremains the same?

Answer 1

Answer:Perimeter will come double of length + previous perimeter

Step-by-step explanation:For ex - Length of a rectangle = 4cm and Breadth of a rectangle = 2cm

Perimeter of a rectangle = 2 x (l + b)

= 2 x (4 + 2)cm

= 2 x (6)cm

= 12cm

If length is doubled then,

Perimeter of a rectangle = 2 x (l + b )

= 2 x (8 + 2)cm

= 2 x (10)cm

= 20cm

As you can see double of perimeter is 8cm and previous perimeter is 12cm.

When we will add it then,

(12 + 8)cm

= 20cm

And this is equal to the perimeter with double length.