The escalator at St. Petersburg Metro in Russia has a vertical rise of 195.8 feet. If the angle of elevation of the escalator is 10 degrees, 21', 36", find the length of the escalator.

Question

anonymous · Answer

Draw a right triangle, so that the height of the building is the height of the triangle. The angle is equal to 10 degrees + 21/60 + 36/3600, which equals 10.36. Use "SOH CAH TOA" to find the hypotenuse of the created right triangle, which would be the length of the escalator.

anonymous · Answer

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