From Degrees to Radians and Back Again

90⁰ in radians

• π/2

• π/4

• 3π/2

• π

45⁰ in radians

• π/3

• π

• π/4

• π/6

180⁰ in radians

• π/2

• π/4

• 3π/2

• π

150⁰ in radians

• 2π/3

• 3π/4

• 5π/6

• 6π/5

Convert 150⁰ to radians

• 5π/6

• 3π/4

• 7π/6

• 2π/3

Convert each degree measure into radians and each radian measure into degrees.

• a

• b

• c

• d

What is 60 degrees in radians? 

• 2π/3

• π/3

• 4π/3

• π/6

Convert each degree measure into radians and each radian measure into degrees.

• a

• b

• c

• d

What is the equivalent of 180 degrees in radians?

• 90 degrees

• 2pi

• pi

• 360 degrees

How many radians does a circle have?

•   360 degrees

• 2π radians

• π radians

• ^{2 radians}