Question

Dibuat Jalannya!!
plisssssss.....................bantui dong..........besok dikumpul

Answer 1

1. 3a +4a + 2a = 180
9a = 180
a = 180/9 = 20

2. 2b + 3b +120 = 180
5b = 180-120
5b = 60
b = 60/5=12

3. 4c +2c + 90= 180
6c = 180-90
6c = 90
c = 90/6 =15

Answer 2

1. 4a + 3a + 2a = 180
9a = 180
a = 20

2. 2b + 3b +120 = 180
5b = 180 - 120
b = 60/5
b = 12

3. 4c + 2c + 90 = 180
6c = 180 - 90
c = 90/6
c = 15