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The Butterfly Theorem

Author:
Lamberto Lamberti
http://www.cut-the-knot.org/pythagoras/Butterfly.shtml

New Resources

  • Arc Length and Sector Area
  • Open Middle: Graphing Linear Inequalities (3)
  • Open Middle Cyclic Quadrilateral Exercise
  • Curry's Paradox: Version 4
  • Open Middle Sector Area Exercise

Discover Resources

  • test214
  • Angle Bisector
  • Transformations - 8th Grade Math
  • تمرين 6 ص 70 مع التقاطع مع y
  • Translations activity

Discover Topics

  • Parallelogram
  • Logarithmic Functions
  • Numbers
  • Multiplication
  • Cone

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