Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra

GoGeometry Action 28! (Quick Angle Problem)

作者：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?

最新資源

探索資源

探索主題