Polygon in Polygon

Topic:Area

James Tanton, inspired by Vincent Pantaloni, tweeted an image I misunderstood, then found something cool. Leaves me wondering why the area case is different for n=4. Tanton tweet

New Resources

Rolling Triangle
bewijs stelling van Pythagoras
Positive and Negative Space
Silhouettes without gaps and isolated
Exploding cube

Discover Resources

Law of Cosines
Activity 2.1.6b Q6 Mapping Congruent Polygons
Regular Tessellations
Edgeworth Box Candy Sharing
modular multiplication temp

Discover Topics

Planes
Tangent Line or Tangent
Parabola
Incircle or Inscribed Circle
Hypergeometric Distribution