Cyclic quads

作成者: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?

新しい教材

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Shells
အခြေခံ data အခေါ်အဝေါ်များ
Circle Passing Through 3 Points
Pitfalls of Disk/Washer Method

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Polyhedron, whose coordinates are golden numbers
espiral de tres centros
เรือเล็ก
Constructing the Perpendicular Bisector

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角柱
中線
数
台形
円