A classroom board is 30 inch wide and 18 inch tall Gil is putting ribbon along the outside edge of the board how many inches of ribbon will he need
To calculate the amount of ribbon needed, we need to find the perimeter of the board.
Perimeter = 2(width) + 2(height)
Perimeter = 2(30 inches) + 2(18 inches)
Perimeter = 60 inches + 36 inches
Perimeter = 96 inches
Therefore, Gil will need 96 inches of ribbon to go along the outside edge of the board.