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Mathematics 16 Online
OpenStudy (anonymous):

Find the reference angle for -120 degrees. A) 240 degrees B) 150 degrees C) 120 degrees D) 60 degrees

OpenStudy (anonymous):

ok i will draw a pic

OpenStudy (anonymous):

|dw:1374651817121:dw|

OpenStudy (anonymous):

so its reference angle is 60 degrees

OpenStudy (theeric):

http://www.mathopenref.com/reference-angle.html

hero (hero):

That website has a great definition of what a reference angle is @arria. You should take a look.

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