A ladder leans against a vertical wall. The end of the ladder is 8 m above the ground. When the lower end of the ladder is moved 2 m farther away from...
Question
A ladder leans against a vertical wall. The end of the ladder is 8 m above the ground. When the lower end of the ladder is moved 2 m farther away from the wall, the other end of the ladder rests against the foot of the wall. The length of the ladder is: