| Harold's Cheat Sheets | ||
| Harold's Geometry Shape Formulas Cheat Sheet | Docx | Perimeter, area, surface area, and volume formulas for 2D & 3D geometric shapes |
| Harold's Geometry Cheat Sheet | Docx | Parallel Lines with Traversals |
| Harold's Geometry Circle Theorems | Docx | Rules of circle geometry, including: angles, arcs, chords, secants, and tangent lines. |
| BarCharts QuickStudy Guide | ||
| Geometry Part 1 | ||
| Links | ||
| WolframAlpha.com | Computational Knowledge Engine | |
| Wikipedia.org | The Free Encyclopedia that anyone can edit | |
| iPad Apps | Apple's App Store | |
| WolframAlpha | The Google of Mathematics | |
| Math Ref | Best Math, Physics, and Chemistry Formulas |
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Last updated 1 September 2025