Juan is looking up to the top of a tree that is 31 feet fallHe is standing 20 feet from the tree as shown in the diagram below. What is the angle of elevation to the nearest degree of Juan’s line of sight to the top of the tree? AN

Q: terminal side initial side Initial side terminal side

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Q: 4. 3.

A: From figure

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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.