假设这条线段为AB,过点A画射线AP,在AP上截取AA1=A1A2=A2A3=……=An-1An,连接AnB,作An-1Bn-1平行于AnB,作An-2Bn-2平行于AnB……,B1B2……Bn即为所求.
ps:根据平行线分线段成比例,A1A2=A2A3,所以B1B2=B2B3.
假设这条线段为AB,过点A画射线AP,在AP上截取AA1=A1A2=A2A3=……=An-1An,连接AnB,作An-1Bn-1平行于AnB,作An-2Bn-2平行于AnB……,B1B2……Bn即为所求.
ps:根据平行线分线段成比例,A1A2=A2A3,所以B1B2=B2B3.