Question

Ronak's class teacher has assigned him the task of decorating the display
board of the class. What length of border will he need if the dimensions of
5 cm
the board are 2.5 m by 1 m?
Priti built a rectangul
ide and has an areg of​

Answer 1

The correct question is -

Ronak’s class teacher has assigned him the task of  decorating the display board of the class. What length of  border will he need if the dimensions of the board are 2.5 m  by 1m?

Given:

Length of the display board. = l = 2.5 m

Breadth of the display board = b = 1m

To Find:

The length of the border

Solution:

Perimeter of the board = 2 ( l + b )

Length of the border. = Perimeter of the board

= 2 ( l + b )

. = 2 ( 2.5 + 1 )

. = 2 ( 3.5 )

. = 7

Answer: The length of the border is 7m