Question

2) The length and breadth of a rectangle is 8 cm and 5 cm
respectively. Find the perimeter of a rectangle formed by joining
the breadth of 4 such rectangles.
​

Answer 1

Answer:

56cm

Step-by-step explanation:

The new rectangle formed by joining has

length 20 cm and breadth 8 cm

Hope it helps you.

Answer 2

Perimeter of rectangle = 2 ( l + b )

= 2 ( 8 + 5 ) cm

= 26 cm

New length = ( 8 + x ) cm

New breadth = ( 5 + x ) cm

Given, 2 ( 8 + x + 5 + x ) = 26 + 2x

2 ( 13 + 2x ) = 52 ➡️ 13 + 2x = 52/2 = 26

2x = 13 ➡️ x = 13/2 = 6.5 cm

Therefore, New length = ( 8 + 6.5 ) cm 14.5 cm.

Step-by-step explanation:

I hope this answer is you useful.