A full circle is 360 degrees or (approximately 6.28) radians. Dividing by two we see that
1/2 circle is 180 degrees or (approximately 3.14) radians. So 2 radians is roughly 2/3 of 180 or roughly 120 degrees.
Since it says to "sketch" it means that we don't have to be precise. Clise is good enough. So just draw an angle of roughly 120 degrees. (The exact number of degrees will be .)