You are a construction worker. to place a 30-foot ladder against a building safely the distance between the base of the ladder and the building must 1/4 of the ladders length how many feet from the bu

You are a construction worker. to place a 30-foot ladder against a building safely the distance between the base of the ladder and the building must 1/4 of the ladders length how many feet from the building should you place the base of the ladder ?