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Ch. 2 Geometry Terms

QuestionAnswer
An if-then statement. Conditional statement
The part of a conditional statement that follows the "then". Conclusion
The opposite of a conditional statement. Converse
The combination of a conditional statement and its converse. Biconditional statement
Whether a statement is true or false or not. Truth value
The part of a conditional statement that follows the "if". Hypothesis
Reasoning logically from given facts to form a conclusion. Deductive reasoning
A law stating "if a conditional is true, then its converse is true". Law of detachment
A law stating "if p->q and q->r are true statements, the p->r is a true statement. Law of syllogism
Two angles whose sides form two pairs of opposite rays. Vertical angles
Two coplanar angles that have a common side and a common vertex but no common interior points. Adjacent angles
Two angles that are adjacent and whose sum of their measures is 90 degrees. Complementary angles
Two angles that are adjacent and whose sum of their measures is 180 degrees. Supplementary angles
A proven conjecture. Theorem
A convincing argument that uses deductive reasoning that is connected in sentences. Paragraph proof
A property stating that something equals itself. Ex: A=A Reflexive property
A property stating that if A=B then B=A. Symmetric property
A property stating that if A=B and B=C, then A=C. Transitive property.
Created by: jcgsville