Answer:
a = 80
b = 310
c = 96
Explanation:
1)
20 + a + a = 180
2a + 20 = 180
2a = 160
2)
180 - 65 - 65 + b = 360
b + 50 = 360
3)
52 + c + 32 = 180
c + 84 = 180
4.7m questions
6.1m answers