To find the length of a ladder leaning against a wall, use trigonometric functions based on the given information of the base distance, angle with the ground, and the ladder forming a right triangle.
A ladder leaning against a wall forms a right triangle with the wall and the ground. The ladder acts as the hypotenuse, the base is 12 feet, and the angle with the ground is 45 degrees. By using trigonometric functions, we can determine the length of the ladder as 12 feet * sec(45 degrees).
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