4
4

2.5, 5, 5

2
A   0, 0
C  1000, 0


0
0

A
3
D  0,          -1
C  65.523503,  -1
B  129.070005, -1

B
3
A  0,          -1
D  23.285006,  -1
C  47.001937,  -1

C
3
B  0,          -1
A  69.451474,  -1
D  131.261212, -1

D
3
C  0,          -1
B  25.021923,  -1
A  52.2628,    -1




˵ԡƽԭ 