Question 1202816
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a,b,c,d = the four exterior angles


a+b = 300
c = d


For any polygon, the exterior angles add to 360 degrees
a+b+c+d = 360
(a+b)+c+c = 360
300+2c = 360
2c = 360-300
2c = 60
c = 60/2
c = 30
Each of the other two congruent exterior angles is 30 degrees.


The first two exterior angles (a and b) are unknown because we don't have enough information based solely on a+b = 300
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