Unit Circle Review

The unit circle...

• has center at (1,1)

• has a circumference of 1

• has a diameter of 1

• has a radius of 1

What the coordinates of 180° on the unit circle?

• (0, 1)

• (1, 0)

• (-1, 0)

• (0, -1)

What the coordinates of 270° on the unit circle?

• (0, 1)

• (1, 0)

• (-1, 0)

• (0, -1)

What are the coordinates of 210° on the unit circle?

• 180°

• 90°

• 135°

• 240°

What are the coordinates of 60° on the unit circle?

• (0, 1)

What is a complete circle in radians?

• 1

What is half a circle in radians?

• 60°

• 240°

• 300°

• 120°