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OpenStudy (anonymous):
An escalator in a department store is to carry people a vertical distance of 90 feet between floors. How long is the escalator if it makes an angle of 30° with the ground? answer in feet
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OpenStudy (anonymous):
180
OpenStudy (anonymous):
30-60-90 triangle
OpenStudy (lalaly):
|dw:1323036319415:dw|
OpenStudy (lalaly):
sin30=90/x |dw:1323036417089:dw|
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