Unit Circle Practice

Front

What are the exact coordinates of 3π/4 on the unit circle?

Back

(−√2∕2, √2∕2)

Front

What is sin 30°?

Back

½

Front

What is the radius of a unit circle?

Back

1

Front

What is cos 90°?

Back

0

Front

What is the value of cosine at 270°?

Back

0

Front

What are the exact coordinates of π/3 on the unit circle?

Back

(1/2, √3/2)

Front

What is tan 45°?

Back

1

Front

What are the exact coordinates of π/6 on the unit circle?

Back

(√3/2, 1/2)

Front

What is sin 90°?

Back

1

Front

What is cos 0°?

Back

1