The Unit Circle

Front

What is the value of cosine at 135 degrees?

Back

-\frac{\sqrt{2}}{2}

Front

What is cos 30°?

Back

\frac{\sqrt{3}}{2}

Front

Determine the ordered pair that lies on the unit circle for \(\theta=150^o\).

Back

\left(-\frac{\sqrt{3}}{2},\frac{1}{2}\right)

Front

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

Back

(-1, 0)

Front

What are the coordinates of 0° on the unit circle?

Back

(1, 0)

Front

What is the definition of the unit circle?

Back

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

Front

What is the sine of 90 degrees?

Back

1

Front

What is the cosine of 270 degrees?

Back

0

Front

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

Back

(0, 1)

Front

What is the sine of 30 degrees?

Back

\frac{1}{2}