Introducing the unit circle and it's family of functions ...

Me Fish!

A bicycle wheel has a diameter of 0.4 meters. A point on the outer rim travelled 2.6 m. How many degrees has the wheel turned?

A bicycle wheel has a diameter of 0.4 meters. A point on the outer rim travelled 2.6 m. How many radians has the wheel turned?

How many radians are there between the minute and hour hands of a clock at 4:00?

State a positive coterminal angle for .

In a circle of radius 6 cm, a sector has a central angle of 30°. What is the area of this sector in square centimeters?