Number 1 will be b=c is alternate after c=a is corresponding (parallel) then you do sum of all triangle and join C + E + D = 180 28+ E + 42 = 180 E + 70= 180 E = 180-70 E = 110 Sum of all triangle is 110 And write all the needed words according to what you are taught I guess the question is asking this B=C C=A E= 110
