Benton has an extension ladder than can only be used at a length of 10 feet, 15 feet, or 20 feet. He places the base of the ladder 6 feet from the wall and needs the top of the ladder to reach 8 feet.

Which ladder length would Benton need to use to reach this height on the wall?
A. 15 feet
B.None of these ladder lengths would reach this height.
C. 10 feet
D. 20 feet

B. None of these ladder lengths would reach this height.

With the base of the ladder 6 feet from the wall, and needing to reach a height of 8 feet on the wall, the ladder would need to be longer than 10 feet, 15 feet, or 20 feet in order to reach the desired height.