3D stellar dodecaedron

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Click and move mouse for 3Drotation

3D decomposition of the dodecaedra(Geogebra4.2)

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Click mouse and mouve mouse  for 3Drotation(true 3D)

Arc,chord and sagitta in circle(primary school)

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Volume of 3Dsolid( Pappus theorem)

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3D net of the cube and dice

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Do not work harder, work better.

3D net of tetraedre with Geogebra4.2

Beginning of a serie of 3D net

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Click on mouse and move for rotation, open or close

with sliders

The 3D sphere triangulated with Geogebra4.2

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Moire effects by rotation

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Random patterns

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