#GeoGebrAdvent Day 9: Bells

Author:Sam Hartburn

Made to go with our choir's rendition of this song, with bells for sopranos, altos and bass, but the only recording I have is from rehearsal so you'll have to imagine the music.

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Untitled
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Rectangle Construction Template (V2)
Fractal Tétraèdre. Dilatation -1/2 centre triangles
Mondrian's Puzzle

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Math 254 Spherical Coordinates
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interior angle of regular polygons

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Standard Deviation
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