The area of a rectangle or wall of a barn is 56 feet it’s the length is 6 feet longer than twice its ways find the length and width of the wall of the board

Answer 1

Area = A = wL = (w+6)w = w^2 +6w = 56

complete the square

w^2 +6w + 9 = 56+9 = 65

w+3) = + or - sqr65

w = -3 +sqr65

= about 5.06 feet = width

Length = 56/5.06 = about 11.07 feet Long

11.07 x 5.06 = 56.01 = about 56 ft^2