看图补全单词:n____ ____ dles
已知关于x的方程x2﹣2(a+b)x+c2+2ab=0有两个相等的实数根,其中a、b、c为△ABC的三边长.
(1)试判断△ABC的形状,并说明理由;
(2)若CD是AB边上的高,AC=2,AD=1,求BD的长.
-My parents our home for a few hours when I arrived. I didn't meet them.-You could call them if you wanted to know where they were.