Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra

Upside Down?

作者：Anthony OR 柯志明
主題：圓
A coin is rolling around another fixed identical coin without slipping. If the coin starts with the head up, is the coin head up or down when it is directly opposite to its starting position, as indicated by the dotted circle?

最新資源

探索資源

探索主題