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1) exterior angle = sum of interior angles except the neighboring one. 

1) 48 + 45 = 93

2)180 - 147 = 33  , 180 - 72  = 108 

x = 180 - 108  - 33 = 39

3) 180 - 104=  76

x =  51 + 76 = 127

4) 180 -154 = 26 , 180 - 73= 107 

x = 180 - 107 - 26=  47

180 - 110 = 70

x = 180 - 140 = 40

last) 180 - 122 = 58

x  = (180 - 58)/2 = 61