A pine tree is located 150 ft from a person on the balcony of a house. From the balcony, an observer notes that the angle of elevation to the top of the tree is 37° and that the angle of depression to the bottom of the tree is 33°. How tall is the tree? How far off the ground is the person?

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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.