sum of interior angles of a quadrilateral is 360 degrees

Argomento:Angoli

On the screen, we see a quadrilateral ABCD in blue color. Observe how the shape and angles of this quadrilateral ABCD change as we move the points A, B, C and D.

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random coprime pairs
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Average Value of a Function
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High School Summer Geometry Activities
Points of Concurrency
tools included
MG-Nine Point Circle
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Dilatazione
Successioni e serie
Rette tangenti
Media
Grafici di funzioni