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

The Cosine Formula - Proof Without Words
Translation and scaling
seo tool
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အခြေခံ data အခေါ်အဝေါ်များ

Discover Resources

H Angle Sum of a Triangle
Tipping Triangles and Angles
distancia entre puntos
Venn Diagram (2 Sets)
Triangle_inequality

Discover Topics

Matrices
Complex Numbers
Quadratic Equations
Congruence
General Quadrilateral