A projectivity characterized by the Pythagorean relation - Wladimir Boskoff and Bogdan Suceava We study an interesting configuration that gives an example of an elliptic projectivity characterized by the Pythagorean relation. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education