Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
19 Cards in this Set
 Front
 Back
Linear Pair Postulate

If two angles form a linear pair, then they are supplementary. i.e the sum of their measures is 180 degrees


Transitive Property

If a=b and b=c then a=c


Congruent Supplements Theorem

if two angles are supplementary to the same angle or to congruent angles then they are congruent


Segment Addition Postulate

If B is between A and C, then Ab+BC=AC


If two lines are perpendicular...

...then they intersect to form 4 right angles


Symmetric Property

If a=b then b=a


Alternate Interior Angles Theorem

If two parallel lines are cut by a trasversal then the pairs of alternate interior angles are congruent


Perpendicular Transversal Theorem

If a transversal is perpendicular to one or two parallel lines, then it is perpendicular to the second


Consecutive Interior Angles Converse

If two lines are cut by a transversal so that consecutive interior angles are supplementary then the lines are parallel


Alternate Exterior Angles Converse

Theorem= If two lines are cut by a transversal so that alternate exterior angles are congruent then the lines are parallel


Alternate Exterior Angles Theorem

If two parallel lines are cut by a transversal, then the pairs of alternate exterior angles are congruent.


Congruent Complements Theorem

If two angels are complementary to the same angle or to congruent angles, then they are congruent


Corresponding Angles Converse

If two lines are cut by a transversal so that corresponding angles are congruent then the lines are parallel


Corresponding Angles Postulate

If two parallel lines are cut by a transversal then the pairs of corresponding angles are congruent


COnsecutive Interior Angles Theorem

If two lines are cut by a transversal then the pairs of consecutive interior angles are supplementary


Property of Perpendicular Lines

If two coplanar lines are perpendicular to the same line then they are prallel to eachother.


If two disinct lines intersect...

...then their interesection is exactly one point


Reflexiver Property

a=a


Transitivity of Parallel Lines

If two lines are parallel to the same line then they are parallel to eachother
