Benchmark Angles

• Cannot be determined

• Cannot be determined

What is the measure of ∠ABC?

• 25°

• 75°

• 108°

• 150°

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______. 

• 45°

• 90°

• 180°

• 360°

Solve for x.

• -11

• 9

• -9

• 10

What is the measure of angle b?

• 36^o

• 56^o

• 63^o

• 117^o

• Alternate Interior Angles

• Alternate Exterior Angles

• Same-side Interior Angles

• Corresponding Angles

• None of these

This is what kind of angle?

• obtuse

• right

• straight

• acute

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