如图,若AB:UV=CD:WV=EF:WU.求证:BC:XY=DE:YZ=FA:ZX.

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如图,若AB:UV=CD:WV=EF:WU.求证:BC:XY=DE:YZ=FA:ZX.如图,若AB:UV=CD:WV=EF:WU.求证:BC:XY=DE:YZ=FA:ZX.如图,若AB:UV=CD:W

如图,若AB:UV=CD:WV=EF:WU.求证:BC:XY=DE:YZ=FA:ZX.
如图,若AB:UV=CD:WV=EF:WU.求证:BC:XY=DE:YZ=FA:ZX.

如图,若AB:UV=CD:WV=EF:WU.求证:BC:XY=DE:YZ=FA:ZX.
很难说明啊.简单说一下思路,要把以其中一边为例,要把AB:UV转成UA:UV或AV:UV,然后在三角形UAF和三角形UWV中寻找比例关系.