I need help on this math..?

well i can tell you that the perimter of the rhombus is 48 cause the opposite sides of a rhombus are =, like a square. and then with triangle you should kno that the angles add up to 180 degrees and that you already have 90 of those 180 so that would mean that the last 2 angles have to be complimentary. hope that helps a little!