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Cut-the-Knot Action 15!

Author:
Tim Brzezinski
Topic:
Circumcircle or Circumscribed Circle, Incircle or Inscribed Circle
Creation of this applet was inspired by a tweet from Alexander Bogomolny. How can we formally prove THIS to be true?

Quick (Silent) Demo

New Resources

  • قرینه قرینه عددهای صحیح
  • قضیه تالس
  • تعداد پاره خط ها
  • حلزون فیثاغورس
  • عددهای طبیعی و صحیح بین دو عدد

Discover Resources

  • Rotacija
  • Translations of Sin(x)
  • Sum of angles of a polygon
  • polygons *not finished*
  • การบวกลบจำนวนเต็ม

Discover Topics

  • Histogram
  • Natural Numbers
  • Rotation
  • Conditional Probability
  • Piecewise Functions

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