Vocabulary
Draw
Angle Relationships
Angle Relationships Part 2
Triangle Angle Sum
and Exterior
and Exterior
Proof
100
What is a part of a line with two endpoints.
Line Segment
100
Parallel lines.
Straight lines that never intersect
100
Two angles are congruent. The measure of the first angles is 42 degrees, what is the measure of the second angle
What is 42?
100
If a pair of adjacent angles formed by intersecting line are linear pairs, what is their relationship?
What is supplementary
100
What is the value of angle T?
T = 71
100
What is the first reason on any proof?
Given
200
What are lines that never intersect?
Parallel Lines
200
Complementary Angles.
Two angles whose measures add up to 90
200
What is the relationship between angles 3 and 6 ?
What are Alternate Interior Angles.
200
One way to prove that lines are parallel lines is through understanding that corresponding angles are
What is congruent
200
What does Triangle Sum Theorem say?
Interior angles add to 180
200
What is the reason for the following statement?
<1 and<2 are a linear pair
Definition of a linear pair
300
What are lines that intersect to form right angles?
Perpendicular Lines
300
Linear Pair Angles.
A pair of adjacent angles formed by intersecting lines. These angles are also supplementary.
300
If the measure of angle 4 is 112, what is the measure of angle 6?
68
300
What kind of angle add up to 180 degrees?
Supplementary
300
Find the value of ∠ x if <C = 72
∠ x = 70
300
What always comes after definition of linear pair?
Linear Pair Postulate
400
What is a flat surface extending in all directions?
Plane
400
Alternate Exterior Angles.
If two parallel lines are intersected by a transversal, these angles are located on the outside of the two parallel lines on opposite sides of the transversal.
400
What is the relationship between angles 5 and 8?
What are Vertical Angles.
400
If the measure of angle 2 is 30 degrees, what is the measure of angle 6? 
What is 30.
400
What is the value of ∠ x?
∠ x = 149
400
What reason is used when changing congruent and equal signs?
Definition of Congruent
500
What is the set of all points in a plane that are a fixed distance from a given point?
Circle
500
Same-side angles (consecutive)
If two parallel lines are cut by a transversal, these angles are on the inside of the two parallel lines and on the same side of the transversal.
500
If the measure of angle 2 is 37 degrees, what is the measure of angle 7? What is the angle relationship?
What is 37 and Alternate Exterior.
500
Given that a || m, measure of angle 5=98°, then the measures of angles 3 and 4 are:
What is angle 3 =82 degrees and angle 4= 98 degrees
500
What is the measure of < C?
<C = 85
500
When do you use "Converse" statements in a proof?
When proving lines are parallel