圆的标准方程
standard equation of a circle The equation of a circle with center $(h, k)$ and radius $r$ is $(x-h)^2 + (y-k)^2 = r^2$.
CSCA 数学 考试术语
standard equation of a circle The equation of a circle with center $(h, k)$ and radius $r$ is $(x-h)^2 + (y-k)^2 = r^2$.
CSCA 数学 考试术语