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Mathematics > Standard Multiple Choice

A -foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on concrete feet from the base of the building. If the top of the ladder slips down feet, then the bottom of the ladder will slide out

Want a hint?

The wall and the ground meet at a right angle. When the ladder is placed against the wall, it creates a right triangle whose hypotenuse is feet long. At first, the bottom of the ladder is feet from the base of the building, so one leg of the right triangle is feet long. It is possible to find the length of the other leg by using the Pythagorean theorem.

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