Try some of these (feel free to add or explain anything)
Knight and the Dwarf Three Cave Problem_MA375Fall2008walther Probability of Line Intersecting Circle Problem_MA375Fall2008walther New: Carnival Game Antics
Try some of these (feel free to add or explain anything)
Knight and the Dwarf Three Cave Problem_MA375Fall2008walther Probability of Line Intersecting Circle Problem_MA375Fall2008walther New: Carnival Game Antics