8
A right triangle has a hypotenuse that measures 41 ft and one side that measures 40 ft. The length of the remaining side of the triangle is sqrt (41^2 - 40^2) = sqrt 81 = 9 ft
Added 6/23/2014 9:06:53 AM
This answer has been confirmed as correct and helpful.
Confirmed by
jeifunk [6/23/2014 9:24:20 AM]