1.∠ADE=∠DEC=∠AEB=∠CEF=40度;
2.∠ADF=90-∠DAF=90-62=28度;
3.∠DAF=90-30=60度,∠D=30=∠B,∠C=∠A=150度,
∴AD=10,AB=4,周长=(10+4)*2=28cm.
4.∠ADQ=∠PBA,AD=BC=PB,QD=DC=AB,△QDA≌△ABP,AQ=AP,
∴△APQ是等腰三角形.
5.Rt△ABE≌Rt△CDF,AE=CF;又AH=CG,∠HAE=∠GCF,
△HAE≌△GCF,∴EH=GF.
6.不等.
设FE与DC的延长线交于G,则△ODF与△OBG全等,DF=BG>BE.