Angles Standard Form Degrees Radians

This is what kind of angle?

• obtuse

• right

• straight

• acute

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

Which angle is a vertical angle to with \angle7 ?

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

• A

• B

• C

• D

What is this angle in radians?

What is the equivalent of 180 degrees in radians?

• 90 degrees

• 2pi

• pi

• 360 degrees

What is this angle in radians?

What is 0 degrees in radians? 

• 2π 

• 0

• π

•  π/2

Find the radian measure of a central angle that measures 40°.

• Cannot be found without a radius length.