yg tau jawab pliss no 2 doang

6x + 4x + 2x = 180
12x = 180
x = 180/12
x = 15

jadi
6x = 90°
4x = 60°
2x = 30°

A.
6x + 4x + 2x = 180°
12x = 180°
x = 180/12°
x = 15°
B.
2x = 2. 15 = 30°
4x = 4. 15 = 60°
6x = 6. 15 = 90°