Two artillery bases are located at the points K and M represented in the figure. Each of the bases locates an enemy airplane at point L and measures the angles of elevation to the airplane. Given the elevation angles in the figure and the fact that the two bases are 824 meters apart, what is the distance, in meters, from the base at point M to the airplane? (Round your answer to the nearest tenth if necessary.)

Q: A b. B.

A: Use trigonometric ratio

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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.