Jawaban:
ABC = 180° - 112° = 68°
A + B + C = 180
42 + 68 + C = 180
110 + C = 180
C = 180 - 110
C = 70 (A)
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Jawaban:
ABC = 180° - 112° = 68°
A + B + C = 180
42 + 68 + C = 180
110 + C = 180
C = 180 - 110
C = 70 (A)