There is a storm coming and andrew is securing his window by placing a wooden plank diagonally across it. the plank extends 1 foot beyond the window at both ends. he knows the window is 7 feet by 3 feet. how long should the plank be?
a. 2 square root 58 feet
b. 2 + square root 58 feet
c. 4 square roor 58 feet
d. 11 feet
e. none of the above