Answer :
Area formula is length times width. You are given the total area and the width, so you only need to find the length. What your have been given can be set up as an equation:
17 ft times length ft (x) = 680 ft^2
x = 680/17 ft
x = 40 ft.
Hope that helps:)
17 ft times length ft (x) = 680 ft^2
x = 680/17 ft
x = 40 ft.
Hope that helps:)