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Mathematics 27 Online
OpenStudy (anonymous):

Determine the principal angle of an angle of measure -770 degrees

OpenStudy (campbell_st):

try 310

OpenStudy (anonymous):

okay, and can u help me with another question

OpenStudy (anonymous):

which angle terminates in the second quadrant: 212 deg, -135 deg, 3pi/4, 7pi/4

OpenStudy (campbell_st):

|dw:1333137183643:dw| look at the diagram.... things to know... pi = 180, 2pi = 360 so 3/4pi = 135 7pi/4 = 315 angles are measured anticlockwise from zero.... negative angles as measured clockwise from zero... hopefully this helps to work out the solution

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