6UC.1 Unit Circle Degrees Only (Sine and Cosine)

Front

What is the definition of a unit circle?

Back

A unit circle is a circle with a radius of 1, centered at the origin (0,0) in the coordinate plane.

Front

Why is the unit circle called the unit circle?

Back

Because its radius is equal to one.

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 sin(30°)?

Back

1/2

Front

What is the value of cos(30°)?

Back

√3/2

Front

What is the value of sin(60°)?

Back

√3/2

Front

What is the value of cos(60°)?

Back

1/2

Front

What is the value of sin(90°)?

Back

1

Front

What is the value of cos(90°)?

Back

0