Intro to Radians

What is 4π/3 radians in degrees?
 

• 120
• 240
• 210
• 270

What is 0 degrees in radians? 

• 2π 
• 0
• π
•  π/2

What is 360 degrees in radians? 

• 2π/3
• 5π/4
• 2π
• π

How many radians does a circle have?

• 360 degrees

• 2π radians

• π radians

• ^{2 radians}

Convert π radians to degrees.

• 90⁰
• 180⁰
• 360⁰
• 60⁰

Convert π/3 radians to degrees

• 60⁰
• 30⁰
• 90⁰
• 45⁰

Convert 100⁰ to radians

• 5π/9
• π/2
• 5π/8
• 5π/6

Convert 330⁰ to radians

• 11π/6
• 11π/3
• 11π/9
• 7π/6

What is a radian?

• a central angle created when the radius is wrapped around a circle.

• a central angle created when the radius is twice as big as the arc length

• a central angle created when the radius is half as big as the arc length

• a misspelling of radius

How many degrees does a circle have?

• 360 degrees
• 2pi
• 180 degrees
• pi