Study your flashcards anywhere!

Download the official Cram app for free >

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


Play button


Play button




Click to flip

15 Cards in this Set

  • Front
  • Back
Two angles in a plane that share a common vertex and a common side but no interior points in common.
Adjacent angles
A statement using "if and only if"
The phrase following the word then in a conditional statement; the final statement of an agrument.
A statement that can be written in the form "If p, then q," where p is the hypothesis and q is the conclusion.
conditional satement
The statement formed by interchanging the hypothesis and conclusion of a conditional statement.
An example that proves that a statement, often a conjecture, is false.
The process of drawing conclusions by using logical reasoning in an argument.
deductive reasoning
The phrase following the word IF in a conditional statement
Forming conjectures on the basis of observations.
inductive reasoning
A series of logically linked conditional statements.
Logical chain
A form of proof in which one's reasoning is explained in paragraph form, as opposed to flow chart or two-column proofs.
Paragrph proof
The oppostie angles formed by two intersecting lines.
Vertical angles
A convincing argument that uses logic to show that a statement is true
A statement that has been proven to be true deductively
A proof in which the statements are written in the left hand column and the reasons are given in the right hand column
Two Column Proof