how long should be the ladder which one would need in order to reach a window 12m high given that the foot of ladder can be placed at a maximum distance of 5m away from the wall
Answers
Answered by
1
Answer: 13m
Step-by-step explanation:
It can be found by using pythagoras theoram
(height of window will be perpendicular and distance between the wall and the ladder is base)
height of the window=12m
distance between the wall and the ladder =5m
pythagoras theoram: H^2=P^2+B^2
= H^2=(12)^2+(5)^2
= 144+25 [We know that the sq. of 12=144 and sq of 5 = 25]
= H^2=169
= H = sq root of 169
= H =13m
Similar questions