Matematika

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tolong pakai cara :)
tolong pakai cara :)

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1 Jawaban

  • X + x + 40 = 180°
    2x + 40 = 180
    2x = 180- 40 = 140
    2x = 140
    X = 140 ÷ 2 = 70
    Jadi x = 70

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