From the top of a 200 meters high building, the angle of depression to the bottom of a second building is 20°. From the same point, the angle, the angle of elevation to the top of the second building is 10°.Calculate the height of the second building. You are required to draw an appropriate diagram.

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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.