A courtyard of Ca' Granda

Circles and squares in a courtyard of Ca' Granda in Milan. The colonnade of the arcade and...

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Problems on the geoboard

A geoboard to compare the areas of polygons with the same perimeter. Exhibit of matemilano...

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Quadrilaterals on the geob...

Some quadrilaterals made on the geoboard.

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A wood carving

The drawing of the veins in this wenge-wooden sculpture of Tommaso Letteriello suggests th...

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A theorem of Pappus's

If we draw two circumferences C and C', which are internally tangent on the point T, we ca...

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Forme di poligoni

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A pattern *333

Mosaico con simmetria di tipo *333 in una decorazione dell pavimento della galleria Garbar...

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A *632 stained glass window

In corso Buenos Aires, Milan, this stained glass window with a hexagonal pattern is an exa...

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Una stella

Un poligono regolare stellato di tipo (12,5). Partendo da 12 punti, vertici di un dodecago...

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Un quadrilatero

Possiamo decidere che due poligoni hanno la stessa forma quando è possibile trascinare i ...

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