Any line that intersects two or more coplanar lines.
What is a transversal?
100
Coplanar lines that do not intersect.
What are parallel lines.
100
Two angles are congruent. The measure of the first angle is 42 degrees, what is the measure of the second angle?
42 degrees
100
If a pair of adjacent angles formed by intersecting line are linear pairs, what is their relationship?
What is supplementary?
100
If a transversal cuts two parallel lines, how many angle measures do you need to know to figure out all 8 angle measures in the figure?
1 angle
200
Two angles whose measures add up to 180 degrees.
What are supplementary angles?
200
Two angles whose measures add up to 90 degrees.
What are Complementary Angles.
200
How do we call angles 2 and 8?
What are Alternate Exterior Angles?
200
One way to prove that angles 1 and 5 are corresponding, is to prove that line l and line m are...
parallel
200
List one angle congruent to angle 4 that is on the opposite side of the transversal.
Angle 2 or 6
300
When 2 parallel lines are both intersected by a transversal, these angles occupy the same position on the top and bottom parallel lines.
What are Corresponding Angles.
300
Linear Pair Angles are also called...
Supplementary Angles
300
If the measure of angle 8 is 112, what is the measure of angle 7?
What is 68.
300
If the measure of angle 2 is 130 degrees , what is the measure of angle 3?
50 degrees
300
If the measure of angle 3 is 35 degrees, what is the sum of angles 1, 3, 5, and 7?
140 degrees.
400
Congruent angles formed by two intersecting lines.
What are Vertical Angles?
400
If two parallel lines are intersected by a transversal these angles are located on the outside of the two parallel lines and on the opposite side of the transversal.
What are Alternate Exterior Angles?
400
What is the relationship between angles 1 and 3?
What are Vertical Angles?
400
What is the sum of angles 5, 6, and 7 when the measure of angle 8 is 105 degrees?
The sum of three angles is 255 degrees.
400
If the measure of <1 is 4x-6 and the measure of <2 is 122, what is the value of x?
4x-6+ 122 =180
4x + 116=180
4x=64
x = 16
500
When 2 parallel lines are both intersected by a transversal these angles are inside of the two parallel lines and on opposite sides of the transversal.
What are Alternate Interior Angles.
500
Point where two vertical angles meet.
What is vertex?
500
If the measure of angle 1 is 40 degrees, what is the measure of angle 7?
40 degrees.
500
To prove that lines are parallel one must understand that same side interior angles (angle 4 and 5) are...
supplementary
500
If the measure of <4 is 8x+35 and the measure of <6 is 2x+47, then find the measure of angle 4.
What is 8x+35+2x+47
6x = 12
x=2
Now plug x=2 into <4 to get:
8x + 35
8(2) + 35=16+35 = 41 degrees