An aircraft (at Z) is spotted by two observers (at X and Y) who are L=1350 feet apart. As the airplane passes over the line joining them, each observer takes a sighting of the angle of elevation to the plane. If A=25 degrees, and B=35 degrees, how high is the plane?
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.
An aircraft (at Z) is spotted by two observers (at X and Y) who are L=1350 feet apart. As the airplane passes over the line joining them, each observer takes a sighting of the
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