Vocab Part I
Vocab Part II
Complement
or Supplement
or Supplement
Identify the
Angle Relationship
Angle Relationship
Odds and Ends
200
A line that intersects two or more parallel lines.
Transversal
200
Two lines that never intersect.
Parallel Lines
200
What is the supplement of 83o?
97o
200
Given lines m and n are parallel, what is the relationship between ∠3 and ∠6?
Alternate Interior Angles
200
Angle Pairs that are congruent
Vertical, Corresponding, Alternate Interior, Alternate Exterior.
300
Two angles that add up to 90 degrees.
Complementary angles
300
Having the same measure (equal).
Congruent
300
What is the complement of 32o?
58o
300
Given lines m and n are parallel, what is the relationship between ∠5 and ∠8?
Vertical Angles
300
Angle Pairs that are supplementary
Linear Pairs, Same Side Interior, Same Side Exterior
400
Two angles that add up to 180 degrees.
Supplementary Angles
400
A pair of opposite, congruent angles formed by two intersecting lines.
Vertical Angles
400
What is the complement of 44.8o?
45.2o
400
Given lines m and n are parallel, what is the relationship between ∠1 and ∠8?
Alternate Exterior Angles
400
First line of a proof
The given
500
Two congruent angles on opposite sides of the transversal and inside the parallel lines.
Alternate Interior Angles
500
Two congruent angles on opposite sides of the transversal and outside the parallel lines.
Alternate Exterior Angles
500
What is the supplement of 39.2o?
140.8o
500
Given lines m and n are parallel, what is the relationship between ∠4 and ∠6?
Same Side Interior Angles
500
Used for proving lines are parallel.
Converse angle pairs
(Converse of Corresponding Angles, etc.)
600
Two angles on same side of the transversal and inside the parallel lines.
Same-Side Interior Angles
600
Two congruent angles located in the same position, but on a different parallel line (1 inside and 1 outside the parallel lines).
Corresponding Angles
600
What is the supplement of 187o?
Not possible
600
Given lines m and n are parallel, what is the relationship between ∠4 and ∠8?
Corresponding Angles
600
4 pairs of these are formed when lines intersect
Linear Pairs