no.3 tentukan nilai a, b, c, d, dan e dari gambarr. pake caraa yaa..

50 + a = 180
a = 180 - 50
a = 130

95 + b = 180
b = 180 - 95
b = 85

80 + c = 180 
c = 180 - 80
c = 100

110 + d = 180
d = 180 - 110
d = 70

80 + e = 180
e = 180 - 80
e = 100