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3x-15+2x-5 = 180
3x+2x-15-5 = 180
5x - 20 = 180
5x = 180+20
5x = 200
x =
x = 40
Sudut WUX = (3x-15)
= (3(40) - 15)
= 120 - 15
= 105
Sudut XUZ = (2x-5)
= (2(40) - 5)
= 80 - 5
= 75
Sudut VUZ = Sudut WUX (bertolak belakang)
= 105
Sudut VUW = Sudut XUZ (bertolak belakang)
= 75
5. (5m-22) = (3m+6)
5m - 22 = 3m + 6
5m - 3m = 22+ 6
2m = 28
m =
m = 14
Sudut BOC = 3m + 6
= 3(14) + 6
= 42 + 6
= 48
Sudut AOC = 180 - 48
= 132