Images for Mathematics

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The kaleidoscope effect

If we put any object between two incident mirrors at angle that divides 180° (30° in the...

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Planes of symmetry of a cube

A cube has nine symmetry planes: three planes which are parallel to a couple of opposite ...

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Heron's problem

Which is the shortest way from a point A to another point B (A and B are on the same semip...

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Volume and similitude

The kaleidoscope of the cube can be used to visualize the fact that, by doubling the edge ...

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Playing with the alphabet

A letter without symmetries. A rotation of 180° sends the letter in itself.

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Playing with the alphabet

A letter with horizontal symmetry (parallel to the direction of writing). Exhibit of Simme...

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Playing with the alphabet

A letter with vertical symmetry (perpendicular to the direction of writing). Exhibit of Si...

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Inside a mirror box with a...

Mirror tricks in a box with angles 30°, 60°, 90°; you get a pattern with a symmetry of ...

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Inside a mirror box with a...

A paving, reproduced in a triangular mirror box with angles 90°, 45°, 45° with these ti...

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Word games

A word with an axis of symmetry perpendicular to the direction of writing.

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