Julia lies down on the grass in a park and begins reading a book. She is 30 meters away from the base of a large maple tree, and when she looks up to the top of the tree she looks at an angle of 35°. What is the height of the maple tree to the nearest tenth of a meter?

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A: use the formula by the trigonometric ratio for finding the height of the tree.

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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.