GeoGebra
GeoGebra
Introduction to Geometry
Planes and Lines
Angles
Parallel Lines
Triangles
Constructions
Introduction to Geometry
Author:
pchou
,
GreenMaths
Topic:
Geometry
Simple applets useful for introducing Geometry to first year students.
Table of Contents
Planes and Lines
Planes, lines etc
Planes, lines etc completed
Angles
Angles as rotations
Straight angles and full circle angles.
Angle Size and Arm Length
Measuring with a protractor
Vertically Opposite Angles 2
To Show That Vertically Opposite Angles Are Equal
Parallel Lines
Showing Alternate Angles
Showing Corresponding Angles
Showing the Sum of Interior Angles
Parallel Lines and Alternate and Corresponding Angles
Non-Parallel Lines and Alternate and Corresponding Angles
More Exercises with Parallel Lines
Triangles
The sum of the angles in a triangle?
Sum of the angles in a triangle
Triangle Exterior Angle Sum Theorem
Isosceles Triangles
Constructions
Construction - Divide a line segment into equal parts
Next
Planes, lines etc
New Resources
GeoGebra snow
Burj Al Arab
Sphere from Circles
Graphing Parabolas
Thin Slice Pythagorean Discovery
Discover Resources
Circle geometry - Lens angle investigation
percentage 2
Sine Graphs
Exploring Circumference: IM 7.3.3
A Special Triangle & Its Properties (I)
Discover Topics
Orthocenter
Trigonometric Functions
Congruence
Area
Derivative
