Mrs. Stevens is wanting to buy new border for her math bulletin board in the hallway l. The length of the board is 6.9 meters. The width is 4.3 meters. How much border does Mrs. Stevens need to buy?

The quantity of board which Mr. Stevens need to buy is 22.4 meters

Step-by-step explanation:

Given as:

The length of board = 6.9 meters

The width of board = 4.3 meters

Let The measure of new board = x meter

Now,

The measure of new board = The perimeter of board

∵ The board is of rectangle figure

As, The perimeter of rectangular board = 2 * Length + 2 * width

So, The measure of new board = 2 * Length + 2 * width

or, x = 2 * 6.9 + 2 * 4.3

or, x = 13.8 + 8.6

or, x = 22.4 meters

So, The measure of new board = x = 22.4 meters

Hence The quantity of board which Mr. Stevens need to buy is 22.4 meters Answer