Please bantu jawab nomor 4. Dikumpul besok nih

a+sdtbob /cab itu set rumusx

AOB = 2.ACB
4x-6 = 2(x+1)
4x-6 = 2x+2
4x-2x = 2+6
2x = 8
x = 4

a. ACB = x+1 = 4+1 = 5
b. AOB = 4x-6 = 4.4-6 = 16-6 = 10