Answer:
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