Geometric Proofs Definitions and Properties

Front

An argument that uses logic, definitions, properties, and previously proven statements to show that a conclusion is true

Back

proof

Front

Any statement that you can prove

Back

theorem

Front

A statement that is accepted as true without requiring proof

Back

postulate

Front

Identify the definition or property that justifies the statement:

If 3x - 7 = -2x + 13

then 5x - 7 = 13

Back

Addition Property of Equality

Front

Back

Subtraction Property of Equality

Front

Back

Multiplication Property of Equality

Front

Back

Division Property of Equality

Front

Back

Reflexive Property of Equality

Front

Identify the definition or property that justifies the statement:

If AB = CD,

then CD = AB.

Back

Symmetric Property of Equality

Front

Back

Transitive Property of Equality