The Unit Circle

Front

How many degrees is π/2 radians?

Back

90°

Front

What is tan 45°?

Back

1

Front

How many degrees is π/3 radians?

Back

60°

Front

What is the value of cosine at 135°?

Back

-√2 /2

Front

How many degrees is π/4 radians?

Back

45°

Front

What is the value of sine at 0°?

Back

0

Front

What is the value of sine at 90°?

Back

1

Front

What is the value of cosine at 0°?

Back

1

Front

What is the value of cosine at 180°?

Back

-1

Front

What is the value of tan 30°?

Back

√3 /3