Radians Degrees and Co-Terminal Angles

Convert radians into degrees

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 510° to pi radians

Mathematical Equivalence

OFF

What is a Radian?

• another name for pi

• a real number measurement

• a degree

• a what?

How do you convert from degrees to radians?

• multiply by the factor
  π/180

• multiply by the factor 180/
  π

• use your calculator

• ask siri

What are co-terminal angles?

• angles that share the same terminal side

• angles that are supplementary

• angles that are complimentary

• angles that are opposite each other