如图,点\(E\)、\(F\)、\(G\)、\(H\)分别是四边形\(ABCD\)边\(AB\)、\(BC\)、\(CD\)、\(DA\)的中点\(.\)则下列说法:
\(①\)若\(AC=BD\),则四边形\(EFGH\)为矩形;
\(②\)若\(AC⊥BD\),则四边形\(EFGH\)为菱形;
\(③\)若四边形\(EFGH\)是平行四边形,则\(AC\)与\(BD\)互相平分;
\(④\)若四边形\(EFGH\)是正方形,则\(AC\)与\(BD\)互相垂直且相等.
其中正确的个数是\((\) \()\)