Welcome to the Geometry Portaportal
Lines and Angles
Angles (G.3)
Complementary, Supplementary, Vertical Angles (G.3)
Transversals (Video) (G.3& G.4)
Constructions (G.11)
Triangles and Logic
Isosceles Triangle Investigation (G.5)
Isosceles and Right Triangles-Video (G.5)
Similar Triangles-Video (G.6)
World of Triangles (G.6)
Simplifying Radicals (G.7)
Demonstrate the Pythagorean Theorem (G.7)
Special Right Triangles (G.7)
Sine, Cosine, Tangent (G.7)
Polygons and Circles
Quadrilaterals-Video (G.8)
Tessellate-Applet (G.9)
Tessellations (G.9)
Circle Ratios (G.10)
Circles at a Glance (G.10)
Three-Dimensional Figures
Cylinder, Cones, Spheres Volume (G.13)
Prisms - Volume (G.13)
Nets to 3-D Applet (G.12)
Coordinate Relations and Transformations
Transformations-Translations (G.2)
Transformations-Reflections (G.2)
Transformations-Rotations (G.2)
Transformations-Dilations (G.2)
Symmetry (G.2)