画线段a b ,在a b的延长线上取一点c,使b,c=2ab,再在ba的延长线上取一点d,使da=ab,(接下面)
画线段a b ,在a b的延长线上取一点c,使b,c=2ab,再在ba的延长线上取一点d,使da=ab,(接下面)
画线段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;再在AB中取一点E,且DE
画线段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.
画线段AB,在AB的延长线上取一点C,BC=二分之一AB,再在BA的延长线上取一点D,使DA=2AB,取AB的中点,若D
画线段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中点E,若DE=6
画线段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中点E,若DE=6
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BC=AB,在BA的延长线上取一点D,使DA=2AB,如果DC=a,那么AB=
已知线段ab,在ab的延长线上取一点c,使bc=ab,再在ab的反向延长线上取一点d,使da=2ab,线段db等于线段b
画线段AB,在AB的延长线上取一点C,使BC=2AB.
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