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Outline
Introduction to Geometry
Planes and Lines
Angles
Parallel Lines
Triangles
Constructions
Introduction to Geometry
Author:
GreenMaths
Topic:
Angles
,
Geometry
,
Straight Lines
,
Planes
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
Isosceles Triangles
Constructions
Construction - Divide a line segment into equal parts
Next
Planes, lines etc
New Resources
Focus and Directrix
Fractal Tétraèdre. Dilatation -1/2 centre triangles
Parallelogram Anatomy
အခြေခံ data အခေါ်အဝေါ်များ
Sum of Squares: Proof without Words
Discover Resources
Pythagorean Triangle 2
Circle Segments 3
ΚΩΝΙΚΕΣ ΤΟΜΕΣ
Comparing Ratios with a Water Dye Simulation
Discover Topics
Random Experiments
Complex Numbers
Set Theory
Geometric Mean
Cylinder
