How do you find the reference angles for:

-190°

-3π/4

5π/8

Question

How do you find the reference angles for:

-190°

-3π/4

5π/8

owlfred · Answer

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anonymous · Answer

= 170degrees

anonymous · Answer

wait, reference is 10degrees ( for the first )

anonymous · Answer

45degrees for the second

anonymous · Answer

and pi/8 ( or 22.5degrees for the third one )

anonymous · Answer

draw the angles on the unit circle

anonymous · Answer

remember negative angles are measured clockwise from the positive x axis

anonymous · Answer

and the reference angle is the angle t makes with the x axis

amistre64 · Answer

reference angles are just the |measurement| from the x axis

amistre64 · Answer

-190 is 10 degrees from the x axis

-3pi/4 is 45 degrees away from the x axis

amistre64 · Answer

and 5pi/8 is 3pi/8 from the x axis

anonymous · Answer

ohh yeh , i didnt do the third one right

anonymous · Answer

thought it was like 5pi/4