Question

The perimeter of a rectangle is 84cm. If the length is 19cm, find the breadth

Answer 1

Step-by-step explanation:

Perimeter of the rectangle = 84cm

Length of the rectangle = 19cm

Formula for the perimeter of a rectangle = 2(l + b)

Therefore,

2(19 + b) = 84

=38 + 2b = 84

=2b = 84-38 = 46

=b = 46/2 = 23 (Ans)

Here is your answer. Hope it helps!

Answer 2

Answer:

Given,

Perimeter of a rectangle = 84cm

Length,l = 19 cm

We know,

Perimeter of a rectangle = 2(l+b)

=> 84 = 2( 19 + b)

=> 84/2 = 19 + b

=> 42 = 19 + b

=> 42 - 19 = b

=> 23= b

=> b=23

therefore breadth = 23 cm