SOLUTION: An escalator in the subway system of St.Petersburg,Russia has a vertical rise of 195ft 9.5 in and rises at an angle of 10.4 degrees.how long is the escalator?

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Question 191207: An escalator in the subway system of St.Petersburg,Russia has a vertical rise of 195ft 9.5 in and rises at an angle of 10.4 degrees.how long is the escalator?
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!


The problem forms a Right Triangle isn't it?



*Take note:
195ft and %289.5cross%28in%29%29%281ft%2F12cross%28in%29%29=0.7917ft

By Trigo Function:
sin%28sigma%29=opp%2Fhyp=vertical%2Fescalator
sin%2810.4%5Eo%29=195.7917ft%2Fescalator
escalator=195.7917%2Fsin%2810.4%5Eo%29=red%281084.6ft%29

Or, 1,084ft and %280.60cross%28ft%29%29%2812in%2F1cross%28ft%29%29=7.2 inches

Thank you,
Jojo