Radians Review

How many radians does a circle have?

•   360 degrees
• 2pi radians
• pi radians
• ^{2 radians}

Which of the following is closest to the measure of the angle drawn by the green curve?

• 5/6 π
• 5/3 π
• 4/5 π
• 4/3 π

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

Convert π radians to degrees.

• 90⁰
• 180⁰
• 360⁰
• 60⁰

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

What is 7π/4 radians in degrees?

• 300
• 135
• 315
• 45

What is 11π/6 radians in degrees? 

• 30
• 330
• 360
•  300

How many radians are there in half a circle?

• 2 pi
• 180^o
• 360^o
• pi

The length of an arc is 18cm and the radius of the circle is 6cm. What is the radian measure of the central angle?

• 3 radian

• 2 radian

• 4 radian

• 2π radian

Find the arc length.

• 3π/4 ft

• 39π/4 ft

• 13π/4 ft

• 4π/13 ft