GeoGebra
GeoGebra
Euclidean Geometry
Proofs: the basics
Segments, lines and angles
Triangles
Polygons
Areas
Misc.
Euclidean Geometry
Author:
Simona Riva
Topic:
Geometry
Collection of Euclidean Geometry worksheets.
Table of Contents
Proofs: the basics
The (mathematical) logic behind the scenes - Lesson+Exploration+Practice
Counterexamples - Lesson+Exploration
Napoleon's Theorem - Defining Hypotheses and Thesis - Lesson+Exploration
Segments, lines and angles
Relative Positions of Two Lines in the Plane - Lesson+Exploration+Practice
Angles Between Two Lines and a Transversal - Lesson+Exploration+Practice
Triangles
Special Points of Triangles - Lesson+Exploration+Practice
Construction of a triangle, given a side and two angles - Lesson
Pythagorean Theorem - a "proof without words"
Golden Triangle and Spiral - Lesson
Dissections - Haberdasher's puzzle
Polygons
Convex, Concave and Self-Intersecting Polygons - Lesson+Exploration+Practice
Exploring rotational symmetry of regular polygons - Lesson+Exploration+Practice
Rotational symmetry and lines of symmetry of a regular polygon - Lesson+Exploration+Practice
Areas
Triangle Area = (b ∙ h)/2 Why? Visual proof (1)
Triangle Area = (b ∙ h)/2 Why? Visual proof (2)
Pythagoras, semicircles and lunes - Lesson+Exploration
Misc.
Kaleidoscope
Ruotiamo...
Next
The (mathematical) logic behind the scenes - Lesson+Exploration+Practice
New Resources
What if the Exponent is an OUTPUT?
Monkey typing Shakespeare's complete works
Oriented Angles and the Unit Circle
Polar Reciprocation
Rings of circles
Discover Resources
Logarithmic Functions with Bases Between Zero and One
Nasty minimisation example
AGF Poll Distributions for Odd Sizes 3 to 21
Calculus Magic "Trapped" in Riemann Sums
Projectile Motion Simulation
Discover Topics
Normal Distribution
Rotation
Polygons
Random Variables
Equilateral Triangles