Find reference angle of each angle.

1) -240 degrees

My answer: 30 degrees

Is this correct?

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- November 30th 2008, 06:33 PMkukid123Trig: find reference angle
Find reference angle of each angle.

1) -240 degrees

My answer: 30 degrees

Is this correct? - November 30th 2008, 08:26 PMSteve_JTrig: find reference angle
I believe that a -240 degree angle equates to a +120 degree angle (since they have to sum to 360 degrees). In that case, the acute angle between the terminal side of the +120 degree angle and the X axis would be a 60 degree angle (180 degrees - 120 degrees).

- Steve J