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GeoGebra
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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
Function Art 3D - Flower
Midpoint Theorem Questions: Mild
繪畫垂直線
Rovnoběžnost rovin
Squaring a Rectangle (PST Version)
Discover Resources
Music Note
calc2_chain_rule_single_parameter
Simone_AngleBisector3
Thalesz
Internal angles of a triangle
Discover Topics
Linear Programming or Linear Optimization
Median Line
Parabola
Piecewise Functions
Logarithm
