• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### 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

Play button

Play button

Progress

1/15

Click to flip

### 15 Cards in this Set

• Front
• Back
 Perpendicular Lines, rays, or segments, that intersect at a right/ 90? angle. Angle assumptions: You cannot assume right angles You cannot assume if a line is perpendicular Complementary Angles Two angles whose sum is 90? Supplementary Angles Two angles whose sum is 180? complementary/ supplementary theorems If angles are supplementary to the same angle they are congruent. If angles are supplementaryn to congruent angles, they are congruent. If angles are complementary to the same angle they are congruent. If angles are complementary to congruent angles they are congruent. If a(n) segment/ angle is addeded to 2 congruent segments/ angles, the sums are congruent Addition Property If a(n) (congruent) segment/ angle is subtracted from congruent segments/ angles, the differences are congruent Subtraction property If segments/ angels are congruent, their like multiples are congruent. Multiplication Property If segments/ angles are congruent, their like divisions are congruent. Division Property If angles/ segments are congruent to the same/ congruent angles/ segments, they are congruent to eachother. Transitive Property Vertical Angles Theorem Vertical angles are congruent If <1 is complementary to <2 and <2 is congruent to <3, the <1 is complementary to <3. Subsitution Property Opposite rays Same vertex (endpoint) opposite directions Vertical angles Two angles are vertical angles if the rays forming the sides of one and the rays forming the sides of another are opposite rays. Can vertical angles be assumed? Yes