GoGeometry Action 64!

Topic:Circumcircle or Circumscribed Circle, Straight Lines, Triangles

Creation of this applet was inspired by a post from Antonio Gutierrez. You can adjust the size of the angle with pink vertex using the pink slider. How can we formally prove what this applet informally illustrates?

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Neuberg's Theorem
兩位數的位值
Prism Drawn in 2-Point Perspective
函數的奇偶性
Average Value

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Conic
การสะท้อน
Modul 4A_AGUSTINA FEBRIYANTI_SMAN 4 SIMPANG HILIR
Ortho-Centre of triangle

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Constructions
Subtraction
Quadrilaterals
Complex Numbers
Diagrams