A man wants to reach a window which is 40 feet above the ground. The distance from the foot of the ladder to the wall is 9 feet. How long should the ladder be
A. 9 feet

B. 81 feet

C. 41 feet

D. 49 feet

• by using pythogrus theorey.answer is 41
• 10 years agoHelpfull: Yes(2) No(0)
• it need pythagores theoram
  L^2 = 40^2+9^2
  = 1600+81
  = 1681
  L = UNDERROOT(1681)
  = 41
  so option c
• 10 years agoHelpfull: Yes(1) No(0)