Sum of exterior angles = 360sum of interior angles = (n-2)180where n = no. Of sides please login using your class index nameeg: 1o301lester
10
11
13
15
6
7
68
89
20˚
40˚
50˚
60˚
60˚
120˚
180˚
240˚
36˚
72˚
108˚
144˚
40˚
80˚
140˚
160˚
36˚
72˚
108˚
144˚
106
127.2
166
212
155
110
200
220
129
144
159
216
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