“微信扫一扫”进入"可可试卷"微信小程序刷题
已知两圆\({C_1}:{\left( {x - 5} \right)^2} + {\left( {y - 3} \right)^2} = 9\)和\({C_2}:{\left( {x - 2} \right)^2} + {\left( {y + 1} \right)^2} = 8\)，则两圆圆心间的距离为___.
参考答案：5
进入考试题库
