tlong jwb beserta carax

[tex]5x = 180 - 60 \\ 5x = 120 \\ x = \frac{120}{5} \\ x = 24 \\ \\ acb = 180 - 4x \\ = 180 - 4(24) \\ = 180 - 96 \\ = 84 \\ \\ abc = 180 - (84 + 60) \\ = 180 - 144 \\ = 36[/tex]

[tex]BAC : \\ 60 + 5x = 180 \\ 5x = 180 - 60 \\ 5x = 120 \\ x = \frac{120}{5} \\ x = 24 \\ \\ ACB : \\ 4x + ACB = 180 \\ 4 \times 24 + ACB = 180 \\ 96 + ACB = 180 \\ ACB = 180 - 96 \\ ACB = 84 \\ \\ ABC : \\ BAC +ABC +ACB = 180 \\ 60 + ABC + 84 = 180 \\ ABC + 144 = 180 \\ ABC = 180 - 144 \\ ABC = 36[/tex]

☛️ Jadi, jawabannya C. 36°.