Concepts & Definitions
Angle Relationships
Conditionals & Validity
Equations of Parallel Lines
200
A _____________ is a line that cuts two or more lines at different points.
What is transversal?
200
How many degrees is an obtuse angle?
91° - 179°
200
What angle pair are angles B and R
What is AEA (Alternate Exterior Angles)?
200
Solve for x
x=2
400
True or False: If one pair of vertical angles are 90 degrees, then the other pair of vertical angle at that intersection will be 90 degrees.
What is true?
400
When given two parallel lines intersected by a transversal, list two angle pairs that are congruent.
What are AIA, AEA, Vert. angles, Corr. angles?
400
What type of angle pair are angles 2 and 6?
Corresponding angles.
400
If angle 5= 5x+30 and angle 8= 9x-10°, what is the value of x?
x=10
600
Angles that are on opposite sides of the transversal and contained outside the two lines being intersected are called:
What is alternate exterior angles?
600
When two lines are cut by a transversal, and the same-side interior angles are supplementary, then you can conclude:
What is that the lines are parallel?
600
What rule was applied to the conditional?
Conditional: "If you live in Denver, then you live in Colorado."
New sentence: "If you live in Colorado, then you live in Denver."
Converse. (switch)
600
If angle 1= 3x+20 and angle 5= 92°, what is the value of x?
x=24
800
If two parallel lines are intersected by a transversal, the measurements of any given pair of angles are either _________ or ____________
What are congruent and supplementary?
800
If two angles in a triangle are 40° and 37° respectively, what is the measure of the third angle?
103°
800
What rule was applied to the conditional?
Conditional: "If two angles form a linear pair, then they are adjacent."
New sentence: "If two angles do not form a linear pair, then they are not adjacent."
Inverse (Negate)
800
If the measure angle 3 is 30°, then angle
m∠4 + 𝑚∠5 = ?
300°
1000
When given two parallel lines intersected by a transversal, list two angle pairs that are supplementary.
What are linear pairs, SSI, SSE?
1000
True or False: "If two angles are supplementary, then their relationship must be a linear pair."
False. Same-Side Interior/Exterior (Consecutive)
1000
Which of the following statements are false?
A. 𝑚∠1 − 𝑚∠2 = 𝑚∠3 − 𝑚∠2 because ∠1 and ∠3 are vertical, therefore ∠1 ≅ ∠3.
B. 𝑚∠3 + 𝑚∠4 = 180° because ∠3 and ∠4 form a linear pair, therefor they are supplementary.
C. ∠1 and ∠4 are both adjacent and supplementary angles, therefore they form a linear pair.
D. 𝑚∠1 + 𝑚∠3 = 𝑚∠2 + 𝑚∠4 because they are angles formed by two intersecting lines, therefor they are vertical and congruent.
1000
If the 𝑚∠4 = (7𝑥 + 25)° 𝑚∠6 = (3𝑥 + 35)° What must be the value of 𝑥 to make the new roads parallel?
x=12