Angles

What is the measure of the vertical angle labeled 1?

• 162 degrees

• 90 degrees

• 18 degrees

• there's not enough information given

1. Find X 

• 28
• 5
• 55
• 40

1. Find ∠ AOC 

• 130
• 50 
• 40

4. Find X

• 1
• 30
• 53
• 10

If m∠1 = 30°, then m∠3 = 

• 30°
• 60°
• 150°
• undetermined

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

What type of angles are these?

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Which angles are vertical angles?

What type of angle is shown?

• acute
• obtuse
• right
• straight