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GeoGebra
GeoGebra Classroom
Outline
Two-Dimensional Shapes and Their Attributes
Lines and Line Segments
Polygons
Angles
Triangles
Quadrilaterals
Two-Dimensional Shapes and Their Attributes
Author:
Lillian Petersen
Table of Contents
Lines and Line Segments
Explore Parallel Lines
Exploring Perpendicular Lines
Creating Lines
Polygons
Geoboard Polygons
Concave/Convex
Angles
How to Construct an Angle
Looking at Angles
Animated Acute Angles
Animated View of Obtuse Angles.
Types of Angles
Triangles
Triangle Lengths Exploration
Triangle Classification Challenge
Triangle Classification Examples
Triangle with Sides and Angles
Quadrilaterals
Quadrilaterals
Classifying Quadrilaterals
Next
Explore Parallel Lines
New Resources
Parallelograms: Quick Investigation
Dissections by Guillermo Bautista
探究由平行線和截線所成的角
Poorly Drawn Parallelograms 3
Exploring Simple Loci 探究簡單軌跡
Discover Resources
Graphical interpretation of the derivative
test
regular octagon
Simply Supported Beam with 1 Concentrated Load
parallel lines
Discover Topics
Expected Value
Interest Calculation
Definite Integral
Integral Calculus
Vectors 3D (Three-Dimensional)