Ladder safety guidelines include the following recommendation about ladder placement. The horizontal distance h between the base of the ladder and the object the ladder is resting against should be about one quarter of the vertical distance v between the ground and where the ladder rests against the object.

a. Find the recommended slope for a ladder. 

b. Suppose the base of a ladder is 6 feet away from a building. The ladder has the recommended slope. Find v. 

c. Suppose a ladder is 34 feet from the ground where it touches a building. The ladder has the recommended slope. Find h.

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Make sure to place the ladder on a level place. If the ladder is not steady, it is not safe to climb. Place the base so the distance h to the building is about one quarter of the height v to where the ladder hits the building.