Ana wants to know the height of a building. She measures a distance of 42 feet from the base of the building and stands at that spot. She then uses a clinometer to measure the angle of elevation to the top of the building, which is 30°. Her eyes are at a height of 5 feet above the ground. How tall is the building? Round your answer to the nearest hundredth foot. 30° 42 ft D 72.75 ft O 29.25 ft O 24.25 ft 41.37 ft

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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.