Question

The perimeter of a rectangle is 20 cm. If its breadth is 4.5 cm, then what its length ?​

Answer 1

Answer:

15.5 cm

Step-by-step explanation:

Given,

Perimeter ( rectangle ) = 20 cm

Breadth ( b ) = 4.5 cm

To find : Length ( l ) = ?

Formula : -

Perimeter ( rectangle ) = 2 ( l + b )

2 ( l + b ) = 20

l + b = 20 / 2

l + b = 10

l = 20 - b

= 20 - 4.5

l = 15.5 cm

Therefore, length ( l ) = 15.5 cm