Plane Geometry
Plane geometry is all about shapes like lines, circles and triangles ... shapes that can be drawn on a flat surface called a Plane (it is like on an endless piece of paper).
If you like drawing, Geometry is for you!
General
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Plane | |
| Shape |
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| Perimeter | ||
| General Drawing Tool | ||
Shapes
Pythagoras
| Pythagoras' Theorem | |
| Pythagorean Triples |
Polygons
| A Polygon is a 2-dimensional shape made of straight lines. Triangles and Rectangles are polygons. Here are some more: | |||||||||
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| Diagonals of Polygons (coming soon) |
Symbols
| There are many special symbols used in Geometry. Here is a short reference for you: Geometric Symbols |
Congruent and Similar
| Congruent Shapes | |
| Congruent Angles | |
| Similar Shapes |
Angles
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Using Drafting ToolsUsing the Protractor |
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Conic Sections
| Set of all points | |
| Conic Sections | |
| Ellipse | |
| Parabola | |
| Hyperbola |
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Transformations and Symmetry |
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Activity: Symmetry of Shapes Activity: Make a Mandala Activity: Coloring (The Four Color Theorem) |
| Tessellations Tessellation Artist |
Trigonometry
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Introduction to Trigonometry Sine, Cosine and Tangent |