For a ladder of fixed length leaning against a wall so that its top reaches a given height, the horizontal distance from the wall's base to the ladder's foot is found using the Pythagorean theorem, since the ladder, wall, and ground form a right triangle.
Let the ladder length be the hypotenuse (2 m) and the height reached on the wall be one leg (1.75 m). By the Pythagorean theorem,...
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