Height of Object from Angle of Elevation Using Sine

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You can find the height of an object from the angle of elevation and the distance to the top.

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In this Demonstration, the object is an obelisk, and the distance is found using a laser range finder.

The sine of an angle in a right triangle is the length of the opposite side divided by the hypotenuse. In this case, . Therefore, the height of the obelisk is given by .

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Contributed by: S. M. Blinder (July 2018)
Open content licensed under CC BY-NC-SA


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