to say hello (to somebody)saludar (a alguien) to say goodbye (to somebody)despedirse (de alguien) to say yes to an offer/a proposalaceptar una oferta/una propuesta. to say no to an offer/a proposalrechazar una oferta/una propuesta. I wouldn't say no to a cup of teame tomarÃ­a un tÃ©. he didn't say a wordno dijo nada. it's (not) for him to say(no) le corresponde a Ã©l decidir.
A circumconic passing through the orthocenter of a triangle is a rectangular hyperbola. In any acute triangle, the inscribed triangle with the smallest perimeter is the pedal triangle of the orthocenter (the triangle whose vertices are the feet of the perpendiculars from the orthocenter to the sides).
Recall that the incenter of a triangle is the point where the triangle's three angle bisectors intersect. It is also the center of the triangle's incircle. The coordinates of the incenter are the weighted average of the coordinates of the vertices, where the weights are the lengths of the corresponding sides.