Angles and Radians Precalculus

How many radians are there in half a circle?

• 2 pi
• 180^o
• 360^o
• pi

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

Convert π/3 radians to degrees

• 60⁰
• 30⁰
• 90⁰
• 45⁰

How many degrees does  circle have?

• 360 degrees
• 2pi
• 180 degrees
• pi

Which of the following is closest to the measure of the angle shown?

• 7/10 π
• 3/8 π
• 7/20 π
• 3/2 π

What is 5π/6 radians in degrees?

• 180
• 150
• 360
• 120

What is 360 degrees in radians? 

• 2π/3
• 5π/4
• 2π
• π

What is 45 degrees in radians?

• π/2
• π/6
• π/4
• 3π/4

Which angle is supplementary to 3π/4?

• 6π/4
• 180°
• π/4
• − 5π/4

Which angle is complementary to π/3?

• 2π/3
• π/6
• − 5π/3
• 5π/3