# 几何图形示例
# 点
A = (0, 0)
B = (4, 0)
C = (2, 3)

# 多边形
Polygon(A, B, C)

# 圆
Circle(A, 2)
Circle(B, 1.5)
Circle(C, 1)

# 线段
Segment(A, B)
Segment(B, C)
Segment(C, A)
