在线段AB的延长线上取一点C,使BC=2AB,再在BA的延长线上取一点D.使DA=3AB,则线段AC是线段BD的几分之几
在线段AB的延长线上取一点C,使BC=2AB,再在BA的延长线上取一点D.使DA=3AB,则线段AC是线段BD的几分之几
已知线段AB,在BA的延长线上取一点C,使CA=3AB,再在线段AB的延长线上取一点D,使BD=2AB,求线段CD:AC
已知线段AB,在线段AB的延长线取一点c,使BC=3AB,在BA的延长线上取一点D,使DA=3/2AB,E是BD的中点
已知线段AB,在AB的延长线上取一点C,使BC=AB,在BA的延长线上取一点D,使DA=2AB.
已知线段AB,在AB的延长线上取一点C,使BC=3AB,在BA的延长线上取一点D,使DA=32
已知线段AB,在AB的延长线上取一点C,使AC=2BC,在AB的反向延长线上取一点D,使DA=2AB,那么线段AC是线段
已知线段AB,在AB的延长线上取一点C,使BC=3AB,在BA的延长线上取一点D,使DA=2AB,E是DB的中点,且EB
已知线段AB,在AB的延长线上取一点C,使BC=AB,在BA的延长线上取一点D,使DA=2AB,E是DB中点,且EB=3
已知线段AB,AB的延长线上取一点C,使BC=2AB,在BA的延长线上取一点D,使DA=2分之3AB,E是DB的中点=3
已知线段AB,在AB的延长线上取一点C,使BC=2AB,再在BA的延长线上取一点D,使DA=AB,取AB的中点E,
已知线段ab,在ab的延长线上取一点c点c,使ac=2bc,在ab的反向延长线上取一点d,使da=2ab,那么线段AC是
已知线段AB,在AB的延长线上取一点C,BC=2AB,再在BA的延长线上取一点D,使DA=AB,取AB中点E,使DE等于