How do you sketch the angle $400^circ$ and find its reference angle?

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Answer 1 · 2018-05-06T04:15:23

As below.

![http://www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U19_L2_T2_text_final.html]( useruploads.socratic.org )

The angle should be less than 360 degrees since a full circle is 360 degrees.

So $400^@-360^@ = 40^@$

How do you sketch the angle 400^circ400^circ and find its reference angle?