Unit Circle

Front

What is 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, used to define trigonometric functions.

Front

What are the coordinates of the point on the Unit Circle at 0°?

Back

(1, 0)

Front

What is the value of sin(90°)?

Back

1

Front

What is the value of cos(90°)?

Back

0

Front

What is the value of sin(180°)?

Back

0

Front

What is the value of cos(180°)?

Back

-1

Front

What are the coordinates of the point on the Unit Circle at 45°?

Back

(√2/2, √2/2)

Front

What is the value of sin(270°)?

Back

-1

Front

What is the value of cos(360°)?

Back

1

Front

What is the value of cos(150°)?

Back

-√3/2