Question

The perimeter of the rectangle is 20 cm and it's length is 8 cm find it's breadth​

Answer 1

Answer :

• Breadth of rectangle is 2cm

Given :

• The perimeter of the rectangle is 20cm
• Length is 8cm

To find :

• Breadth

Solution :

• Let the breadth of rectangle be b

• Perimeter of rectangle is 20cm
• Length of rectangle is 8cm

We know that ,

• Perimeter of rectangle = 2(l + b)

Where,

• l is length of rectangle
• b is breadth of rectangle

Finding the breadth of rectangle :

↬ Perimeter of rectangle = 2(l + b)

↬ 20 = 2(8 + b)

↬ 8 + b = 20/2

↬ 8 + b = 10

↬ b = 10 - 8

↬ b = 2cm

Hence , Breadth of rectangle is 2cm.

Verification :

↬ Perimeter of rectangle = 2(l + b)

↬ 20 = 2(8 + 2)

↬ 20 = 2(10)

↬ 20 = 20

Hence , Verified

Answer 2

Answer:

Breadth of rectangle is 2cm

Step-by-step explanation:

Perimeter = 2(l+b)

20      = 2(8+b)

20/2   = 8+b

10       = 8+b

10 - 8  = b

2 cm   = b