Basic Terms
A portion of a line containing two endpoints.
The slope of the equation y = 3x + 5.
What is 3?
Angles that add up to 90 degrees.
What is complementary?
Angles 1 and 2 are corresponding angles. If Angle 1 is 24 degrees, then Angle 2 is....
What is 24 degrees?
The name of the line that intersects two other lines.
What is a transversal?
The term used to describe points lying on the same line.
What is collinear?
The slope of a horizontal line.
What is 0?
Angles that are directly across from each other, and are formed by two intersecting lines.
What are vertical angles?
Two angles are supplementary. One angle is 115 degrees, the other angle is...
If Angles 1 and 2 are same-side interior angles, and Angle 1 is 110 degrees, find Angle 2.
What is 70?
Lines that intersect and form right angles.
What is perpendicular?
The midpoint of a segment with endpoints A(2,4) and B(-4, 6).
What is (-1,5)?
Angles that are directly next to each other, and share a common vertex and side.
What are Adjacent Angles?
Angles 3 and 4 are vertical angles. If Angle 3 = (2x+5) and Angle 4 = (4x+1), find x.
What is x=2?
Given two lines are parallel, Angle 1 and Angle 2 are alternate exterior angles. If one of them is 50 degrees, the measure of the other is...
What is 50 degrees?
A ray that cuts an angle into two congruent angles.
What is an angle bisector?
The length of segment AB comes out to be radical 28. This is the simplest form of radical 28.
What is 2 radical 7?
Two angles that are adjacent, and form a line.
What is a linear pair?
Angles 5 and 6 are a linear pair. If Angle 5 is (x-10) and Angle 6 is (4x-5), find x.
What is x=39?
If the lines are parallel and Angles 3 and 4 are alternate interior, find x if Angle 3 = (10x-2) and Angle 4 = (5x+13).
What is x=3?
A line, ray, or segment that intersects a segment through its midpoint AND creates right angles.
What is a perpendicular bisector?
When writing the equation of a perpendicular bisector, these are the two things we plug into point-slope form.
Angles that are on the opposite side of a transversal, and between the two other lines.
What are alternate interior angles?
Given Angle 1 + Angle 2 = Angle ABC, Angle 1 is 12 degrees, and Angle ABC is 80 degrees, find Angle 2.
What is 68?
Of our 4 pairs of angles formed by parallel lines, which is the only pair that is always supplementary?
What is same-side interior angles?