Do come girlzz I am waiting

Me with this crossword homework puzzle i guve !

19. fill in the blank with the correct conjugation of the verb in parentheses. (estudiar) en la biblioteca

In the diagram, which must be true for point d to be anorthocenter? o be, cf, and ag are angle bisectors. be 1 ac, ag 1 bc, and cf 1 ab. be bisects ac, cf bisects ab, and ag bisects bc. be is a perpendicular bisector of ac, cf is aperpendicular bisector of ab, and ag is a perpendicularbisector of bc.