GoGeometry Action 53!

Thème :Angles, Cercle Inscrit ou Circonscrit, Triangles Rectangles

Creation of this applet was inspired by a tweet from Antonio Gutierrez. What is the measure of the blue angle? How can we formally prove this true?

Quick (Silent) Demo

Nouvelles ressources

Superellipse
Slope Between 2 Points (Phase 2)
Pathway to Proof: Triangle Angles
Area of a Circle Illustrated
Rolling an Equilateral Triangle

Découvrir des ressources

Move the vertices and record the lengths of DF and AC. Look for any invariants
Geogebra Tori
Εμβαδό τετραπλεύρου(geom-10)
Investigating Enlargement 1
Timer (=Countdown)

Découvrir des Thèmes

Équations Quadratiques
Fonctions Trigonométriques
Combinatoires
Racine
Nuage de Points