Angles and Quadrants in Circles

If you split the circle into 4 equal parts, how many radians will each section be?

• π/4
• π/2
• 45^o
• 90^o

If you split the circle into 4 equal parts, how many degrees will each piece be?

• 90^o
• π/4
• 45^o
• π/2

Convert to degrees: 22π/3

• 223°
• 660°
• 840°
• 1320°

How do you convert from radians to degrees?

• Multiply by pi/180*
• Multiply by 180*/pi
• You can't convert from degrees to radians

Convert to degrees:  8π/3

• 480°
• 240°
• 800°
• 24°

Find the reference angle for an angle measuring -310⁰

• 50⁰
• -50⁰
• 20⁰
• 40⁰

Fill in the blank with <, =, or >
π/6 ______ 30º

• <
• =
• >

Fill in the blank with <, =, or >
180º ______ π/2

• <
• =
• >

Standard position is when .....

• the initial side of the angle is on the positive x-axis.
• the initial side of the angle is on the negative x-axis.
• the initial side of the angle is on the positive y-axis.
• the initial side of the angle is on the negative y-axis.

Negative angles are measured in which direction from standard position?

• Clockwise
• Counterclockwise