Unit Circle Practice

Front

What is the definition of a coterminal angle?

Back

Coterminal angles are angles that share the same terminal side when drawn in standard position. They can be found by adding or subtracting multiples of 360° (or 2π radians) to the original angle.

Front

What is the positive angle in degrees and radians that represents point D on the unit circle?

Back

60°, \frac{\pi}{3}.

Front

What is the positive angle in degrees and radians that represents point I on the unit circle?

Back

180°, \pi.

Front

What is the positive angle in degrees and radians that represents point H on the unit circle?

Back

150°, \frac{5\pi}{6}.

Front

How do you find a coterminal angle?

Back

To find a coterminal angle, add or subtract 360° (or 2π radians) from the given angle.

Front

What is the positive angle in degrees and radians that represents point A on the unit circle?

Back

0°, 0.

Front

What is the positive angle in degrees and radians that represents point B on the unit circle?

Back

90°, \frac{\pi}{2}.

Front

What is the positive angle in degrees and radians that represents point C on the unit circle?

Back

180°, \pi.

Front

What is the positive angle in degrees and radians that represents point E on the unit circle?

Back

270°, \frac{3\pi}{2}.

Front

What is the positive angle in degrees and radians that represents point F on the unit circle?

Back

360°, 2\pi.