3 Let be incircle of . and are on and, such that is parallel to and is tangent to . touch at . Prove that if is midpoint of, and is intersection point of and, then is tangent to .
3 Hayaan ay incircle ng . at ay sa at, Tulad na ay Kahambing sa at padaplis na . touch sa . Patunayan na kung ay ang midpoint ng, At ay intersection punto ng at, At pagkatapos ay ay padaplis na .