Question

The area of a rectangular piece of card board is 36000000 sq.cm . If the length of a cardboard is 9000cm then find the perimeter of the cardboard.

Answer 1

As given ,
Area of rectangular cardboard = 36000000sq. cm
Length of cardboard = 9000cm
So, breadth of cardboard = 36000000/ 9000 = 4000cm
Perimeter of cardboard = 2(l+b )
= 2(9000+4000)
= 2× 13000
= 26000 cm