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OpenStudy (anonymous):

An engineer on the ground is looking at the top of a building. The angle of elevation to the top of the building is 22 The engineer knows the building is 450ft tall. What is the distance from the engineer to the base of the building to the merest while foot?

OpenStudy (anonymous):

|dw:1389215309329:dw| x will be your distance. Know how to find it? a certain trig function?

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