Cut-the-Knot-Action 13!

Author:Tim Brzezinski

Creation of this applet was inspired by a tweet from Alexander Bogomolny. LARGE points are moveable at any time. How can you formally prove what this applet informally illustrates?

New Resources

Hyperbolic Paraboloid
Cartesian vs Polar
Model sferyczny - dwunastościan-dwudziestościan
Rose Curve
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

Parabola Sliders (Final)
Integral and Rieman Sum
ITA - Περιστροφή
単位円
การลบจำนวนเต็ม

Discover Topics

Algebra
Continuity
Diagrams
Tangent Line or Tangent
Sphere