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July 31, 2015

Homework Help: math

Posted by chris on Thursday, February 3, 2011 at 4:25am.

a boy walks 50m from the bottom of a building lies down and notes that he has to raise his eyes through 42 degree from the horizontal. what is the height of the building?

i am doing tan(42)=x/50 but the answer is supposed to be 45m. how do i get that?

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