b = 180 - 58 = 122
answer: 122°
c = 180 - 82 = 98
answer: 98°
d = 180 - 60 = 120
answer: 120°
e = 180 - 37 = 143
answer: 143°
f = 180 - 24 = 156
answer: 156°
then for x and a,
the sum of the internal angles of a 6 sided polygon is
therefore:
answer: a = 81°
x = 180 - 81 = 99
answer: 99°