Unit Circle Practice

Front

What is the definition of the unit circle?

Back

The unit circle is a circle with a radius of 1 centered at the origin (0,0) in the coordinate plane. It is used to define trigonometric functions.

Front

What are the coordinates of the point on the unit circle at 0 degrees?

Back

(1, 0)

Front

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

Back

(0, 1)

Front

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

Back

(-1, 0)

Front

What are the coordinates of the point on the unit circle at 270 degrees?

Back

(0, -1)

Front

How do you convert degrees to radians?

Back

Front

How do you convert radians to degrees?

Back

Front

What is the sine of 30 degrees?

Back

Front

What is the cosine of 60 degrees?

Back

Front

What is the tangent of 45 degrees?

Back

1.