Tentukan besar sudut AOD, sudut COD, dan sudut BOD

180° = 2x + 6x + 4x
180° = 12x
180° : 12 = x
15° = x

•AOD = 2x = 2.15° = 30°
•COD = 6x = 6.15° = 90°
•BOD = 10x = 10.15° = 150°