Radians Degrees and Coterminal Angles

How many degrees does  circle have?

• 360 degrees

• 2pi

• 180 degrees

• pi

How many radians does a circle have?

• 360 degrees

• 2pi radians

• pi radians

• ^{2 radians}

Convert 150⁰ to pi radians

Mathematical Equivalence

OFF

Convert 120° to pi radians

Mathematical Equivalence

OFF

Find a coterminal angle to 45 degrees.

In circle O, the radius is 4, and the length of minor arc AB is 4.2 feet.  Find the measure of minor arc AB to the nearest degree.

• 90

• 60

• 55

• 113

If you split a circle into 6 equal parts, how many degrees will each section be?

• 30/pi^o

• 60^o

• 30^o

• 60/pi^o

Mathematical Equivalence

ON

Convert 100⁰ to pi radians

Mathematical Equivalence

ON