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Mathematics
Geometry
1. Foundations of Euclidean Geometry
2. Angles
3. Parallel and Perpendicular Lines
4. Logic and Geometric Proofs
5. Triangles
6. Right Triangles and Trigonometry
7. Similarity
8. Quadrilaterals and Polygons
9. Circles
10. Geometric Transformations
11. Three-Dimensional Geometry
12. Coordinate Geometry
Logic and Geometric Proofs
Types of Reasoning
Inductive Reasoning
Making Conjectures from Patterns
Limitations of Inductive Reasoning
Counterexamples
Deductive Reasoning
Logical Arguments
Valid vs Invalid Arguments
Laws of Logic
Law of Detachment
Law of Syllogism
Conditional Statements
If-Then Statements
Hypothesis and Conclusion
Truth Value of Conditionals
Converse
Definition and Formation
Truth Value of Converse
Inverse
Definition and Formation
Truth Value of Inverse
Contrapositive
Definition and Formation
Truth Value of Contrapositive
Logically Equivalent Statements
Biconditional Statements
Definition and Notation
When to Use Biconditionals
Writing Biconditional Statements
Truth Conditions for Biconditionals
Properties of Equality
Reflexive Property
Symmetric Property
Transitive Property
Substitution Property
Addition Property
Subtraction Property
Multiplication Property
Division Property
Properties of Congruence
Reflexive Property of Congruence
Symmetric Property of Congruence
Transitive Property of Congruence
Writing Geometric Proofs
Structure of a Proof
Given Information
Prove Statement
Statements and Reasons
Two-Column Proofs
Format and Organization
Writing Effective Two-Column Proofs
Flowchart Proofs
Structure and Symbols
Creating Flowchart Proofs
Paragraph Proofs
Writing Style and Organization
Transitional Phrases
Common Proof Strategies
Working Backwards
Auxiliary Lines
Proof by Cases
Justifying Statements in Proofs
Using Definitions
Using Postulates
Using Theorems
Using Given Information
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3. Parallel and Perpendicular Lines
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5. Triangles