tentukan besar sudut BOC

Sudut saling berpelurus
180 = (6 x-5) + (2x +25)
180 = 6 x + 2 x-5 + 25
180 = 8 x + 20
180-20 = 8 x
160 = 8 x
160/8 = x
20 = x

<BOC
2 x + 25
2 (20) + 25
40 + 25
65 °

<AOC
6x-5
6 (20)- 5
120- 5
115 °


Maaf klo salah ✈️