3. Geometry and Trigonometry

The Unit Circle — Quiz

Test your understanding of the unit circle with 5 practice questions.

Practice Questions

Question 1

What is the radius of the unit circle?

Question 2

Which equation represents the unit circle in the coordinate plane?

Question 3

If a point on the unit circle has coordinates $(0,1)$, what angle measured from the positive $x$-axis does it correspond to in standard position?

Question 4

On the unit circle, what are the coordinates of the point corresponding to angle $\frac{\pi}{6}$?

Question 5

Which statement is always true for a point $(x,y)$ on the unit circle?