From one point A, the angle of elevation of the top of a tall building CD is 12°. From another point B, in the same vertical plane 150 m closer to the buildiịng, the angle of elevation is 25°.. Determine - the height of the building CD. 12° 150m 25

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A: topic - inverse trigonometric ratios

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.