メインコンテンツ | サブコンテンツ | ||||
---|---|---|---|---|---|
w_wrong00 | The concept of "Something strange" | ||||
w_wrong01 | Tracks of incenter・excenter | Track of incenter | Doubt (1) | Track of excenter | Doubt (2) |
Excenter are three. | Incenter and excenter are brothers | ||||
w_wrong02 | Number of common tangent lines | Starting point | First result | Background of the odd number |