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GeoGebra
GeoGebra Classroom
Outline
Shapes 3D
Solids
Symmetry
Nets
Sections
Projection
Surface
Volume
Dumpling models
Shapes 3D
Author:
Arthur Lee
Solids and 3D geometry
Table of Contents
Solids
3D Pythagorean Theorem
Folding Aeroplane (HKCEE 1999 )
Coxeter's Kaleidoscopic Cell 1
Spherical Lines: Great Circles
Parabola Around y-Axis
Cube and Tetrahedron
cube in dodecahedron
Symmetry
Rotational Symmetry of Cube
Rotational Symmetry of Tetrahedron
Rotational Symmetry of Octahedron
Rotational Symmetry of Icosahedron
Rotational Symmetry of Dodecahedron
Nets
Nets of the Cube
11 Nets of the Cube
Net of Hexagonal Prism
Nets of Tetrahedron
Net of Icosahedron
Net of Dodecahedron
Another Net of Dodecahedron
Octahedron and Boat
The Quadratic Pyramid
Sections
Exploring Sections of Cubes
Sections of Rectangular Prisms (Cuboids)
Sections of Triangular Prisms
Sections of Rectangular Pyramids
Sections of Triangular Pyramids
Projection
projection of a segment
opening a door
box diagonal
Shadow
Projection of a Sphere - Central Projection
Surface
Curved Surface Area of Cones (Parametric Curved Surface)
Surface Area of Spheres
Curved Surface Area of Cones
Curved Surface Area of Cones (Combined Version)
Making a cone
Volume
equal cross sections
three tetrahedrons
tisect a cube
opening a cube
cutting a sphere
section of sphere
section of cone
Kugelvolumen - Cavalieri
Volume of Spheres
A sphere in a cylinder.
maximum cone
Dumpling models
dumpling model
Tetrahedron Net (general)
tetrahedron unfold
The Dumpling Challenge (inspired by Arthur Lee)
The Dumpling Challenge II
The Dumpling Challenge III
The Final Dumpling Challenge
Next
3D Pythagorean Theorem
New Resources
Spherical dodecahedron/icosahedron
Vectors and Components - Trig
Here comes the sun!
Untitled
Noisy loop
Discover Resources
Theorem 8
Field of Fractions
Drag 3 Points to the Line (w/o Initial Value and Fractions)
สำเนาของ parabola satellite dish
Gretaer integer
Discover Topics
Hypergeometric Distribution
Trigonometry
Line Segment
Poisson Distribution
Matrices
