A and e are congruent so e is 105 since h and e make a line they will add up to 180 180=105+h H= 75 If the triangles are similar then 8~y and 6~9 divide 9 by 6 to get the scale factor this is how much the triangle enlarges by or shrinks by 9/6= 1.5 now that you know the scale factor you can find y y/8=1.5 Y= 12
