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Mathematics 11 Online
OpenStudy (anonymous):

The height of a cell phone tower, AB, is 200 feet. What is the distance, in feet, between the tip of the tower A and a point C on the ground?

OpenStudy (anonymous):

sam (.sam.):

180

OpenStudy (anonymous):

?

sam (.sam.):

\[\tan(42)=\frac{BC}{200}\] \[BC=200\tan(42)\]

OpenStudy (anonymous):

200 sec 42° 200 sin 42° 200/tan42 200/cosec42

OpenStudy (anonymous):

those are the answer choices

sam (.sam.):

Oh they want hypotenuse

sam (.sam.):

\[\cos(42)=\frac{200}{AC}\] \[AC=\frac{200}{\cos(42)}\] \[AC=200\sec(42)\]

sam (.sam.):

200 sec 42°

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

There is no where in my lessons that tells me how to do this...

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