3 Squares Problem (II)

Author:Tim Brzezinski

Creation of this applet was inspired by a post from eyleMMath. How can we formally prove that the measures of the two red angles are equal? Is this possible to prove without using trigonometry?

New Resources

Silhouettes without gaps and isolated
רישום חופשי
Multiplying 2-Digit x 2-Digit Numbers Using an Area Model (2)
Rolling Triangle
Function Art 3D - Pawn

Discover Resources

Centru Radical.
Maggie Ruggiero Test
Delapaz-Joiner_G1_Reflections
Parabola - Vertex Form Matching
Modul 20.D.1_Trisdyanto_SMPN 1 Bungoro Pangkep

Discover Topics

Difference and Slope
Boxplot
Incircle or Inscribed Circle
Hypothesis Testing
Vectors