Unit circle Degrees and Radians

Front

What are the coordinates of the point at 30 degrees on the unit circle?

Back

(√3/2, 1/2)

Front

What is the length in radians of the arc of the circle from 0 degrees to 120 degrees?

Back

2π/3

Front

What is the length in radians of the arc of the circle from 0 degrees to 300 degrees?

Back

5π/3

Front

What is the cosine of the angle at 150 degrees?

Back

-√3/2

Front

What is the sine of the angle at 30 degrees?

Back

1/2

Front

What is the sine of the angle at 120 degrees?

Back

√3/2

Front

What is the cosine of the angle at 240 degrees?

Back

-1/2

Front

What is the tangent of the angle at 45 degrees?

Back

1

Front

Convert 180 degrees to radians.

Back

π radians

Front

Convert 90 degrees to radians.

Back

π/2 radians