Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
 Front
 Back
Definition of Skew Lines
31 
If two lines are skew, then they do not intersect and are not in the same plane.


Parallel Lines
31 
If two (or more) lines in a plane never intersect, then they are parallel.


Corresponding Angles Postulate
32 
If two parallel lines are cut by a transversal, then each pair of corresponding angles is congruent.


Alternate Interior Angles Theorem
32 
If two parallel lines are cut by a transversal, then each pair of alternate interior angles is congruent


Consecutive Interior Angles Theorem
32 
If two parallel lines are cut by a transversal, then each pair of consecutive interior angels is supplementary.


Alternate Exterior Angles Theorem
32 
If two parallel lines are cut by a transversal, then each pair of alternate exterior angles is congruent


Perpendicular Transversal Theorem
32 
In a plane, if a line is perpendicular to one of two parallel lines, then it is perpendicular to the other.


Definition of Slope
33 
The slope m of a line containing two points with coordinates (X1, Y1) and
(X2, Y2) is given by the formula m = Y2  Y1 / X2  X1 

Parallel Lines Postulate
33 
Two nonvertical lines have the same slope if and only if they are parallel.


Perpendicular Lines Postulate
33 
Two nonvertical lines are perpendicular if and only if the product of their slopes is 1.


Converse of the Corresponding Angles Postulate
34 
If two lines in a plane are cut by a transversal so that corresponding angles are congruent, then the lines are parallel.


Parallel Postulate
34 
If there is a line and a point not on the line, then there exists exactly one line through the point that is parallel to the given line.


Converse of the Alternative Angles Theorem
34 
If two lines in a plane are cut by a transversal so that a pair of alternate exterior angles are congruent, then the two lines are parallel.


Converse of the Consecutive Interior Angles Theorem
34 
If two lines in a plane are cut by a transversal so that a pair of consecutive interior angles is supplementary, then the lines are parallel.


Converse of the Alternate Interior Angles Theorem
34 
If two lines in a plane are cut by a transversal so that a pair of alternate interior angles is congruent, then the lines are parallel.


Converse of the Perpendicular Transversal Theorem
34 
In a plane, if two lines are perpendicular to the same line, then they are parallel.


Definition of the Distance Between a Point and a Line
(Not on the test) 35 
The distance from a line to a point not on the line is the length of the segment perpendicular to the line from the point.


Definition of the Distance Between Parallel Lines
(Not on the test) 35 
The distance between two parallel lines is the distance between one of the lines and any point on the other line.
