Angles and Degrees and Radians

Find a coterminal angle to -180 degrees.

• 180

• 90

• 270

• 360

How do you convert from degrees to radians?

• Multiply by pi/180*

• Multiply by 180*/pi

• You can't convert from degrees to radians

How do you convert from radians to degrees?

• Multiply by pi/180*

• Multiply by 180*/pi

• You can't convert from degrees to radians

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.

angles sharing a terminal ray

• positive angles

• reference angle

• coterminal angles

• I don't know

Negative angles are measured in which direction from standard position?

• Clockwise

• Counterclockwise

Convert the following to radians:   
720⁰

• 3π

• 4π

• 5π

Convert the following to degrees:
-8π/5 radians

• -288⁰

• -260⁰

• -275⁰

Find the measure of the angle marked in red.

• -230°

• 130°

• 230°

• 50°

Find a coterminal angle to 5°.

• 365°

• 255°

• -220°

• -365°