Unit Circle

Front

What is the value of cos 60°?

Back

½

Front

What is the value of sin 30°?

Back

½

Front

What is the value of tan 90°?

Back

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Front

What is the value of sin 0°?

Back

0

Front

What is the value of cos 0°?

Back

1

Front

What is the value of tan 45°?

Back

1

Front

What is the relationship between sine and cosine?

Back

sin(θ) = cos(90° - θ) for any angle θ.

Front

What is the unit circle?

Back

A circle with a radius of 1 centered at the origin of a coordinate plane.

Front

What are the coordinates of the point at 90° on the unit circle?

Back

(0, 1)

Front

What are the coordinates of the point at 180° on the unit circle?

Back

(-1, 0)