Cyclic quads

Auteur :Stephen Sproule

CDEF is a cyclic quadrilateral Move point C to find a relationship between angles D and F. (You may need to study this for a while.) By moving point C does the relationship between angles C and E change?

Nouvelles ressources

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Circle Passing Through 3 Points
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Reflection = 180° Rotation about a Line
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Step 9
And more unexpected conics...
10.3.1d #977171 option D
Spiral Dots

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Triangles
Triangles Scalènes
Corrélation
Graphe de Fonction
Histogramme