Divisione angoli

Bisettrice – Divisione di un angolo in due parti uguali

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Bisettrice con vertice al di fuori dell’area del disegno

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Divisione dell’angolo retto in tre parti uguali

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Divisione dell’angolo piatto in tre parti uguali

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Divisione dell’angolo piatto in quattro parti uguali

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Divisione dell’angolo piatto in tre angoli consecutivi: 30° 90° 60°