How do you sketch the angle 240 degrees and find its reference angle?

1 Answer
Jan 5, 2017

Explained below.


The angle of #240^o# is drawn as shown in the figure. Angle of #0^o# is taken to be along the positive x-axis. Then turn anti-clockwise by 240 degrees to draw the angle as desired. It is indicated along the line OP in the figure.

The reference angle is the acute angle which this line OP makes with the x- axis. This angle would measure #60^o# as shown in the figure .

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