Question

已知：如图,在平行四边形ABCD中,点E、F、G、H分别在边AB、BC、CD、DA上,且AE = CG,AH = CF,

Answer 1

1）∵平行四边形ABCD∴∠A=∠C,∠B=∠DAB=CD.AD=BC∵AE = CG,AH = CF,∴BF=DH.BE=DG∴△AEH≌△CGF△BEF≌△DGH∴EH=GF,EF=GH∴四边形EFGH是平行四边形2)∵四边形EFGH是平行四边形∴EH∥FG∴∠FEG=∠HEG=∠EGF∴EF=F...