Question

please answer this question

Answer 1

57=angle EDC (alternate interior)
30+57+ angle DEC=180 (angle sum property)
87+DEC = 180
DEC = 180-87
DEC = 93

Answer 2

a=57 c=30
soln-
      a=d-------(alternate angle)
      d=57

     d+c+e=180-----(sum of angle of triangle)
     57+30+e=180
     e=180-87
     
    e=93