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Mathematics 9 Online
OpenStudy (anonymous):

Need Help with one multiple choice question. [Medal & Fan]

OpenStudy (anonymous):

OpenStudy (dbzfan836):

ah, trigonometry.

OpenStudy (mathstudent55):

Try drawing a figure to represent the situation.

OpenStudy (dbzfan836):

|dw:1447713064922:dw|

OpenStudy (mathstudent55):

I'll start the figure for you. |dw:1447713131135:dw|

OpenStudy (dbzfan836):

our height of the pole is 8 feet, while we have our observer 120 ft away |dw:1447713158751:dw|

OpenStudy (mathstudent55):

The height of the pole is the unknown. It is not 8 ft.

OpenStudy (dbzfan836):

hmm, then what is transit?

OpenStudy (mathstudent55):

@LetsLearn2000 Complete the figure I started above. Place the transit at the far right side. The transit is 8 ft tall. Then the angle of elevation of the transit tot eh top of the pole is 36 deg. Try to draw that.

OpenStudy (mathstudent55):

A transit is an optical instrument that is used to measure angles. The transit sits on top of an 8-foot pole.

OpenStudy (dbzfan836):

I am sorry that I will be unable to assist in this. Goodbye!

OpenStudy (mathstudent55):

@LetsLearn2000 Are you still there?

OpenStudy (mathstudent55):

|dw:1447713447632:dw|

OpenStudy (anonymous):

Sorry I had went away but I'm back now :)

OpenStudy (mathstudent55):

The pole measures 8 ft + y. We can find y using trig with the triangle drawn above.

OpenStudy (mathstudent55):

|dw:1447713562597:dw|

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