连续抛掷两次骰子分别得到的点数m,n作为点P的坐标所得P点有: (1,1),(1,2),(1,3),(1,4),(1,5),(1,6) (2,1),(2,2),(2,3),(2,4),(2,5),(2,6) (3,1),(3,2),(3,3),(3,4),(3,5),(3,6) (4,1),(4,2),(4,3),(4,4),(4,5),(4,6) (5,1),(5,2),(5,3),(5,4),(5,5),(5,6) (6,1),(6,2),(6,3),(6,4),(6,5),(6,6).共36个 其中落在圆x2+y2=10内(含边界)的有: (1,1),(1,2),(1,3),(2,1),(2,2),(3,1)共6个 故点P落在圆x2+y2=10内(含边界)的概率P== 故选A |