Download Angles and Lines

Angles and Lines
Final Review Part 1
New Vocabulary
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Congruent
Transversal
Vertical Angles
Adjacent Angles
Corresponding Angles
Alternate Interior Angles
Alternate Exterior Angles
Consecutive Interior Angles
Congruent
• The same size
Transversal
• A line that crosses a set of parallel lines
Vertical Angles
• Vertical Angles are the angles opposite each
other and share the same vertex
• vertical angles are equal
Corresponding Angles
• The angles in matching corners are called
Corresponding Angles.
• Think about if you cut and placed
Alternate Interior Angles
• The pairs of angles on opposite sides of the
transversal but inside the two lines are called
Alternate Interior Angles.
• Alternate Interior angles are congruent
Alternate Interior Angles
3 6
5 4
Alternate Exterior Angles
• The pairs of angles on opposite sides of the
transversal but outside the two lines are called
Alternate Exterior Angles.
• These angles are congruent
Alternate Exterior Angles
2 8
1 7
Consecutive Interior Angles
• The pairs of angles on one side of the
transversal but inside the two lines are called
Consecutive Interior Angles.
• Their sum is 180°
Consecutive Interior Angles
Adjacent Angles
• Two angles are Adjacent when they have a
common side and a common vertex (corner
point) and don't overlap.
• Angle ABC is adjacent to angle CBD
• Because: they have a common side (line CB) they
have a common vertex (point B)
Adjacent Angles
Adjacent Angles
1 and 2
3 and 4
5 and 6
7 and 8
Which is which?
Vertical
Corresponding
Alternate Exterior
Adjacent Alternate Interior Consecutive
Practice
Vertical
Corresponding
Alternate Exterior
Adjacent Alternate Interior Consecutive
Practice
Vertical
Corresponding
Alternate Exterior
Adjacent Alternate Interior Consecutive
Practice
Vertical
Corresponding
Alternate Exterior
Adjacent Alternate Interior Consecutive
What is the missing measure?
What is the missing measure?
What is the missing measure?
What is the missing measure?
What is the missing measure?
What is the missing measure?
5
What is the missing measure?
What is the missing measure?
E= 150
What is the missing measure?
0
What is the missing measure?
0