Answer:
The ladder is 11 m long approximately .
Step-by-step explanation:
Given :The foot of a ladder is placed 7 meters from a wall.
To Find :If the top of the ladder rests 9 meters up on the wall, how long is the ladder?
Solution :
The foot of a ladder is placed 7 meters from a wall.
Base = 7 m
The top of the ladder rests 9 meters up on the wall
So, height at which ladder touches wall i.e. perpendicular = 9 m
We are supposed to find how long is the ladder i.e. Hypotenuse
Hence The ladder is 11 m long approximately .