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GeoGebra
GeoGebra Classroom
Outline
Introduction to Geometry
Planes and Lines
Angles
Parallel Lines
Triangles
Constructions
Introduction to Geometry
Author:
Curt Painter
,
GreenMaths
,
pchou
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
bewijs stelling van Pythagoras
derivatives of power
seo tool
Proving Triangles Congruent (2): Multi-Step Transformations
以百分數比較兩個數值
Discover Resources
VG 1A8
Final Activity
Razmerje 10 popolnost... 1
Week 11 Day 1 Learning Goals
Secant and Tangent
Discover Topics
Plane Figures or Shapes
Difference and Slope
Vectors 3D (Three-Dimensional)
Conditional Probability
Statistics
