已知BC=10,AC=6,求AE

已知AE=AB,AF=AC,∠BAE=∠CAF,求:EF=BC已知AE=AB,AF=AC,∠BAE=∠CAF,求:EF=BC已知AE=AB,AF=AC,∠BAE=∠CAF,求:EF=BC∵∠EAF=∠

已知AF=BF,BC=DC求AE/AC的值已知AF=BF,BC=DC求AE/AC的值已知AF=BF,BC=DC求AE/AC的值做CG平行于AB点C为中点,所以2CG=BF=AF因为CG平行于AB所以平

如图,已知AE∥BC,AE平分∠DAC,求证：AE∥BC.已知AE∥BC，AE平分∠DAC，求证：AB=AC如图,已知AE∥BC,AE平分∠DAC,求证：AE∥BC.已知AE∥BC，AE平分∠DAC，

△ABC中,AC=8,AB=6,BC=10,AD,AE分别是BC边上的高和中线,求AD,AE,DE的长度△ABC中,AC=8,AB=6,BC=10,AD,AE分别是BC边上的高和中线,求AD,AE,D

已知：在梯形ABCD中,AD//BC,AE垂直BC,AE=12CM,BD=15CM,AC=20CM,求梯形ABCD面积已知：在梯形ABCD中,AD//BC,AE垂直BC,AE=12CM,BD=15CM

如图,已知△ABC中,BC=2AB,AD是BC上的中线,AE是△ABD的中线.求AC=2AE如图,已知△ABC中,BC=2AB,AD是BC上的中线,AE是△ABD的中线.求AC=2AE如图,已知△AB

如图,在△ABC中,已知DE‖BC,AD=4,AE=3,BD=61证明△ADE∽△ABC2求AE/AC的值3求AC,EC的长度如图,在△ABC中,已知DE‖BC,AD=4,AE=3,BD=61证明△A

求三角形ABC的面积,已知AC=8厘米,BC=6.2厘米,AE=2厘米,求求三角形ABC的面积,已知AC=8厘米,BC=6.2厘米,AE=2厘米,求求三角形ABC的面积,已知AC=8厘米,BC=6.2

已知AB/AD=AC/AE=BC/DE.试说明AD*CE=BD*AE已知AB/AD=AC/AE=BC/DE.试说明AD*CE=BD*AE已知AB/AD=AC/AE=BC/DE.试说明AD*CE=BD*

已知:如图,AC/AD=AB/DE=BC/AE.求证AB=AE已知:如图,AC/AD=AB/DE=BC/AE.求证AB=AE已知:如图,AC/AD=AB/DE=BC/AE.求证AB=AE∵AC/AD=

已知,如图,AD/AC=DE/AB=AE/BC,求证AB=AE已知,如图,AD/AC=DE/AB=AE/BC,求证AB=AE 已知,如图,AD/AC=DE/AB=AE/BC,求证AB=AE在

已知,如图,AD:AC=DE:AB=AE:BC求证：AB=AE已知,如图,AD:AC=DE:AB=AE:BC求证：AB=AE 已知,如图,AD:AC=DE:AB=AE:BC求证：AB=AE证

已知,如图,AD/DB=AE/EC,证明DE/BC=AE/AC已知,如图,AD/DB=AE/EC,证明DE/BC=AE/AC已知,如图,AD/DB=AE/EC,证明DE/BC=AE/ACAD/DB=A

已知在三角形ABC中,AB=AC,AE平分∠DAC,试说明AE//BC?已知在三角形ABC中,AB=AC,AE平分∠DAC,试说明AE//BC?已知在三角形ABC中,AB=AC,AE平分∠DAC,试说

已知三角形abc中,ab=ac,ae平行bc,请说明ae平分∠dac已知三角形abc中,ab=ac,ae平行bc,请说明ae平分∠dac已知三角形abc中,ab=ac,ae平行bc,请说明ae平分∠d

如图,已知AE平分∠DAC,AE平行BC,那么AB=AC吗?如图,已知AE平分∠DAC,AE平行BC,那么AB=AC吗?如图,已知AE平分∠DAC,AE平行BC,那么AB=AC吗?证明：∵AE平分∠D

如图已知AE平行BC,AE平分角DAC,求证AB=AC如图已知AE平行BC,AE平分角DAC,求证AB=AC 如图已知AE平行BC,AE平分角DAC,求证AB=AC 

如图,已知AE平行于BC,AE平分角DAC,求证：AB=AC.如图,已知AE平行于BC,AE平分角DAC,求证：AB=AC. 如图,已知AE平行于BC,AE平分角DAC,求证：AB=AC.因

如图,已知AB=AC,AE平分∠DAC,那么AE//BC吗?如图,已知AB=AC,AE平分∠DAC,那么AE//BC吗?如图,已知AB=AC,AE平分∠DAC,那么AE//BC吗?因为AB=AC所以三

已知:如图AE平行BC,AE平方∠DAC,求证:AB=AC已知:如图AE平行BC,AE平方∠DAC,求证:AB=AC已知:如图AE平行BC,AE平方∠DAC,求证:AB=AC【纠正：AE平分∠DAC】