**All Geometry Formulas and Equations Cheat Sheet**

Geometry formula reference / cheat sheets. For everyday use at school, work and home.

**Angles**

Type Of Angles

**Triangles**

Relations Between Angles

Interior Angles, Exterior Angles

Angle Bisectors

Interior Angle Bisector Theorem, Exterior Angle Bisector Theorem

Median

Triangle Theorems

Ceva’s Theorem, Stewart’s Theorem, Basic Proportionality Theorem, Menelaus’ Theorem, Carnot’s Theorem

Right Triangle

Similarity

**Trigonometry**

Unit Circle

Trigonometric Functions

Sum and Product Formulas

Sum and Difference Identities

Reciprocal, Pythagorean and Quotient Identities

Negative Angle Identities

Trigonometric Function Signs

Trigonometric Values for Common Angles

**General**

Geometric Symbols

**Circles**

Quadrilaterals

Regular Polygons

Quadrilaterals

**Formulas for Area, Perimeter, Volume**

Planar Two Dimensional Shapes

Three-Dimensional Objects