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Practice problem

Find Sin, Cos, Tan from Lengths of Triangle Sides

By Victoria Rodriguez
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A right triangle with a hypotenuse of 400 feet is traced out over an image of a pyramid. The triangle has an acute angle of 60 degrees. The side opposite that angle is labeled x.

Lucas took a trip to go see the pyramids and was fascinated by the symmetry of these amazing creations. Upon studying the pyramids he decided he wanted to know the height of the pyramid.

Lucas already knows that the hypotenuse of the pyramid is 400400 feet. In order to find the height of the pyramid, Lucas measured the angle of elevation and found that it is 60∘60^{\circ}.

Given this information, how tall is the pyramid? Round to the nearest whole number.

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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