techmathi - 3.2- parallel lines and transversal
TRANSCRIPT
Find the line parallel to each slope and set of points.
1. m = 3, (-2, 4)
2. m = ½, (3, 9)
3. y = -2x + 8, (-1, 5)
Transversal- is a line that intersects two or more coplanar lines each in a different point
Corresponding Angles “same spot”
Alternate Interior Angles “inside the z”
Alternate Exterior Angles “outside the z”
Consecutive Interior Angles “back to back inside”
1 2
3 4
5 67 8
1 2
3 4
5 67 8
Corresponding Angles - congruent
Alternate Interior Angles - congruent
Alternate Exterior Angles - congruent
Consecutive Interior Angles - supplementary
1
2
3
4
5
6
7
8
Practice
1. Name a set of vertical angles.
2. Name a set of corresponding angles.
3. Name a set of alternate interior angles.
4. Name a set of alternate exterior angles.
5. Name a set of consecutive interior angles.
1 2
3 4
5 6
7 8
9 1011 12
13 1415 16
You try!
1. Name a set of vertical angles.
2. Name a set of corresponding angles.
3. Name a set of alternate interior angles.
4. Name a set of alternate exterior angles.
5. Name a set of consecutive interior angles.
Practice1
3x + 3
5x + 1
1. Find measure of x.
2. Find measure of <1.2
3
3. Find measure of <2.
4. Find measure of <3.
You try!
1
6x - 9
3x + 3
1. Find measure of x.
2. Find measure of <1.2
3
3. Find measure of <2.
4. Find measure of <3.