Unit Circle Quick Check

Front

What are the signs of coordinates in the first quadrant?

Back

(+, +)

Front

What are the signs of coordinates in the second quadrant?

Back

(-, +)

Front

What are the signs of coordinates in the third quadrant?

Back

(-, -)

Front

What are the signs of coordinates in the fourth quadrant?

Back

(+, -)

Front

True or false: Half a circle is π radians.

Back

True

Front

True or false: A full circle is π radians.

Back

False

Front

What is the total angle in radians for a full circle?

Back

2π radians

Front

What is the angle in radians for a quarter circle?

Back

π/2 radians

Front

What is the angle in radians for a half circle?

Back

π radians

Front

What is the relationship between degrees and radians for a full circle?

Back

360 degrees = 2π radians