🧩 בעיה

נתון:

\(AO || BD\)

\(\measuredangle ABO = 90^\circ\)

\(\measuredangle BAF = \measuredangle BDO\)

הוכח:

\(\triangle ABO \sim \triangle CEB\)

\(\triangle{BAO}\cong\triangle{COF_1}\) משפט חפיפה צ.ז.צ

\(\Downarrow\hspace{1cm}\)

\(HO=k\cdot HO-k\cdot f\)