What is a transversal
Any line that intersects two or more parallel lines.
Parallel lines.
Straight lines that never intersect
Two angles are congruent. The measure of the first angles is 42 degrees, what is the measure of the second angle
What is 42?
If a pair of adjacent angles formed by intersecting line are linear pairs, what is their relationship?
What is supplementary
If a transversal cuts two parallel lines, how many angles are formed?
What are 8
What are two angles whose measures add up to 180 degrees
What are supplementary angles? or What are co-interior angles? or what are co-exterior angles?
Complementary Angles.
Two angles whose measures add up to 90
What is the relationship between angles 3 and 6 ?
What are Alternate Interior Angles.
One way to prove that lines are parallel lines is through understanding that corresponding angles are
What is congruent
List an angle relationships where the angles are supplementary.
Linear pair (a pair of adjacent supplementary angles), co- interior angles
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.
Supplementary Angles
A pair of adjacent angles formed by intersecting lines that form a straight line.
If the measure of angle 4 is 112, what is the measure of angle 6?
68 degrees
What kind of angle add up to 180 degrees?
Supplementary Angles
If the measure of angle 1 = 146 what is the measure of angle 5?
What is 146?
Congruent angles formed by two intersecting lines. These angles are located across from each other.
What are vertically opposite angles?
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.
What is the relationship between angles 5 and 8?
What are Vertical Angles.
If the measure of angle 2 is 30 degrees, what is the measure of angle 6?
What is 30.
If the measure of angle 6 = 75 what is the measure of angle 7?
What is 75?
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 Angles?
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.
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.
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
If the measure of angle 4 is 1270 what is the measure of angle 7?
What is 530 ?