GoGeometry Action 28! (Quick Angle Problem)

Author:Tim Brzezinski

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

New Resources

גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Monge's Theorem
Pendulum Snake
Constructing an Isosceles Triangle with Given Side + Activities
GeoGebra around GeoGebra

Discover Resources

Points on a Plane
Rebecca Stinson - Geogebra Circles
a-200
Angle Between Two Planes

Discover Topics

Quadrilaterals
Geometric Mean
Means
Circumcircle or Circumscribed Circle
Division