Vocabulary
Any line that intersects two or more lines.
What is a transversal?
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.
What are Same Side Interior Angles?
Two angles are congruent. The measure of the first angles is 42 degrees, what is the measure of the second angle
What is 420?
The supplement of 500
What is 1300?
Two angles whose measures add up to 180 degrees
What are supplementary angles?
Two angles whose measures add up to 900
What are Complementary Angles?
What is the relationship between angles 4 and 5?
What are Alternate Interior Angles?
One way to prove that lines are parallel lines is through understanding that corresponding angles are
What is congruent?
When 2 parallel lines are both intersected by a transversal, these angles occupy the same position on both the top and bottom parallel lines.
What are Corresponding Angles?
A pair of adjacent angles formed by intersecting lines.
What are Linear Pair or Supplementary Angles?
If the measure of angle 8 is 1120, what is the measure of angle 7?
What is 680?
To prove that lines are parallel one must understand that alternate interior angles are
What is congruent?
If the measure of <1 is 4x-6 and the measure of <8 is 1220, what is the value of x?
What is 32?
Congruent angles formed by two intersecting lines
What are Vertical Angles?
If two parallel lines are intersected by a transversal these angles are located on the outside of the two parallel lines and are on opposite sides of the transversal.
What are Alternate Exterior Angles?
What is the relationship between angles 1 and 4?
What are Vertical Angles?
If the measure of angle 2 is 300 , what is the measure of angle 7?
What is 300?
If the measure of <4 is 1500 and the measure of <5 is 3x, what is the value of x and what is the measure of <6?
What is <6=300 ; and 3x=150 so x=50
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?
Coplanar lines that do not intersect.
What are parallel lines?
If the measure of angle 1 is 1370, what is the measure of angle 8? What is the angle relationship?
What is 1370? Alternate Exterior Angles
Given that a || b, m<1=98°, then the measures of <5 and <8 are:
What is 980?
If m<1=8x+35 and m<2=2x+5, find the value of x and the measure of each angle.
What is x = 14? 8x+35+2x+5=180
8(14) + 35 10x+40=180
2(14) + 5 10x=140 x=14