Cut-The-Knot-Action 8!

Author:Tim Brzezinski

Creation of this applet was inspired by a tweet from Alexander Bogomolny. How can you formally prove that the area of the orange triangle is less than or equal to

of the area of the ENTIRE TRIANGLE?

New Resources

Visualizing the Pythagorean Identity with Sine and Cosine
Untitled
Average Value
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Double Rodin Coil Style Torus

Discover Resources

Alternate angles
Stars
day 82 (4)
Corresponding Angles
I Walk The Line

Discover Topics

Special Points
Interest Calculation
Upper and Lower Sum or Riemann Sum
Piecewise Functions
Hyperbola