We are supposed to assume FC and AD is straight line let's find all the angles
you already see the right angle is 90 degrees, you got that right striaght line is 180 degrees
90+46+EF=180 136+EF=180 minus 136 both sides EF=44 now we got another straight line you did get that A F=46 because it is oposite
notice: AB=BC because same angle designition so now we use 180+46+2AB=360 2AB=134 divide 2 AB=67=BC AC=134 degrees CAE=134+46+44=224 ABD=180 since straight line
