如图,在正方形\(ABCD\)中,\(AC\)为对角线,\(E\)为\(AB\)上一点,过点\(E\)作\(EF/\!/AD\),与\(AC\)、\(DC\)分别交于点\(G\),\(F\),\(H\)为\(CG\)的中点,连接\(DE\),\(EH\),\(DH\),\(FH.\)下列结论:
\(①EG=DF\);\(②∠AEH+∠ADH=180^{\circ}\);\(③\triangle EHF\)≌\(\triangle DHC\);\(④\)若\( \dfrac {AE}{AB}= \dfrac {2}{3}\),则\(3S_{\triangle EDH}=13S_{\triangle DHC}\),其中结论正确的有 ______ .