A ladder 16 feet long leans against the side of a building, and the angle formed by the ladder and the building is 25◦. (a) Approximate the distance from the bottom of the ladder to the building. (b) If the distance from the bottom of the ladder to the building is decreased by 1.5 feet, approximately how much higher up the wall does the ladder reach?
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
A ladder 16 feet long leans against the side of a building, and the angle formed by the ladder and the building is 25◦. (a) Approximate the distance from the bottom of the ladder to the building. (b) If the distance from the bottom of the ladder to the building is decreased by 1.5 feet, approximately how much higher up the wall does the ladder reach?
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