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The Butterfly Theorem
Author:
Lamberto Lamberti
http://www.cut-the-knot.org/pythagoras/Butterfly.shtml
New Resources
Fractal Triangle and Incircle
Fractal Hand Turkey
Volume Under a Curve
Open Middle: Absolute Value Function Graph Exercises
Toblerone Modeling (Part 1)
Discover Resources
Trig puzzle
Circle Construction using three points
Reflections about x-axis, y-axis
Extra Credit quiz 9
Jenis Segitiga Berdasarkan Panjang Sisi dan Besar Sudut
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Natural Numbers
Algebra
Means
Translation
Prism