Chapter 3 Flashcards
Perpendicular
Two lines that Intersect at 90
Parallel
Lines that never intersect
Transversal
A line that intersects 2 or more lines
Corresponding
Same position, different location
Alternate
Other side
Consecutive
Next too
Exterior
Outside
Interior
Inside
Vertical angles congruence thereom
Congruent
Linear pair
180
Corresponding angles
Congruent
Alternate exterior angle thereom
Congruent
Alternate interior angle thereom
Congruent
Corresponding angles thrm
Congruent
Converse:If Angle pairs then
Parallel lines
If two parallel lines are cut by a transversal,then the pairs of corresponding angles are congruent
Parallel
Same slope
Perpendicular
Negative reciprocal of each other
Slope formula
M = y2-y1/x2-x1
Ratio
Write first number on top and ratio added together,on the bottom
Example: 1 to 3
Ratio: 1/4
Skew lines
Don’t intersect,not parallel and are on the same plane
Thereoms just
Say and prove the relationship between two angles
Thrm. Converses proves
Parallel lines
