Robots

An entertaining game about different views of spatial objects.

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Reflecting a circle across an axis

Axis t and a circle with centre O and radius r are given on a particular plane. Let’s plot the...

Non-orientable surfaces

The Möbius strip and the Klein bottle are special two-dimensional surfaces with only one...

Geometric transformations – translation

This animation demonstrates geometric translation in both plane and space.

Net of a cube (exercises)

Not all nets consisting of 6 congruent squares are foldable into cubes.

Building shapes (one colour)

Build 3D shapes from unit cubes with the help of several views.

Volume of spheres (demonstration)

The sum of the volume of the ´tetrahedrons´ gives an approximation of the volume of the...

Regular square pyramid

A regular square pyramid is a right pyramid with a square base and four triangular faces.

Cube sections (exercise)

Examining solids formed by the intersection of a cube and a plane.

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