1. A 6-ft ladder is placed against a wall with its base 2.5 ft from the wall. How high above the ground is the top of the ladder? 2. A rope 13 m long from the top of a flagpole will just reach a point...

1. A 6-ft ladder is placed against a wall with its base 2.5 ft from the wall. How high above the ground is the top of the ladder?

2. A rope 13 m long from the top of a flagpole will just reach a point on the ground 9 m from the foot of the pole. Find the height of the flagpole.