Measure of Angles in Standard Position

Multiple Select

Which of the following is/are TRUE about refernce angle?

NOTE: You may choose more than one answer.

• It is positive

• It is an obtuse angle

• One of its side is the terminal side of the given angle

• The other side of the angle is an x-axis

Multiple Choice

What is the reference angle of $$\frac{7\pi}{3}?$$  

• $$\frac{\pi}{3}$$  

• $$\frac{\pi}{4}$$  

• $$\frac{\pi}{6}$$