Vocabulary
Draw
Angle Relationships
Angle Relationships Part 2
Angle Relationships Part 3
100
What is a transversal
Any line that intersects two or more parallel lines.
100
Parallel lines
Straight lines that never intersect
100
Two angles are opposite. The measure of the first angles is 42 degrees, what is the measure of the second angle and why?
42 - vertically opposite angles
100
If a pair of adjacent angles formed by intersecting line add to 180, what is their relationship?
Supplementary angles or "angles on a straight line.
100
If a transversal cuts two parallel lines, how many angles are formed?
8
200
What are supplementary angles?
Two angles whose measures add up to 180 degrees
200
Complementary Angles
Two angles whose measures add up to 90
200
What is the relationship between angles 3 and 6 ? 
Alternate Angles (Z or N).
200
If the measure of angle 4 is 100 degrees, what is the measure of angle 5, and why?
What is 100 degrees because they are alternate interior angles.
200
What is the measure of angle a, and why?
50 degrees because they're complimentary.
300
These angles are equal and form an F pattern.
Corresponding Angles.
300
Supplementary 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. (co-interior angles)
300
If the measure of angle 6 is 72 degrees, what is the measure of angle 4, and why?
108 degrees since they are co-interior.
300
What is the measure of angle c, and why?
60 degrees because they're supplementary.
400
What are vertically opposite angles?
Equal angles formed by two intersecting lines. These angles are located across from each other.
400
Alternate 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?
vertically opposite Angles.
400
If the measure of angle 2 is 30 degrees , what is the measure of angle 6, and why?
30, because they are corresponding.
400
What is the measure of angle g, and why?
50 degrees because they're opposite.
500
What are Alternate Angles?
Two angles that are equal that form a N or Z pattern.
500
Co-interior angles
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?
37
500
If the measure angle 5 is 98 degrees, what is the measure of angles 3 AND 4, and why?
What is angle 3 =82 degrees because they are co-interior and angle 4= 98 degrees because they are alternate interior.
500
What is the measure of angle i, and why?
48 degrees because they're complementary.