### Three homothetic centers are collinear associated a circumscribed conic hexagon

ActivityĐào Thanh Oai

### Antipedal triangle of a point and cevian trinagle of another point perespective

ActivityĐào Thanh Oai

Đào Thanh Oai

### Three homothetic centers are collinear associated a circumscribed conic hexagon

ActivityĐào Thanh Oai

### Antipedal triangle of a point and cevian trinagle of another point perespective

ActivityĐào Thanh Oai