Matematika

Pertanyaan

Tolong bantu jawab ya
Tolong bantu jawab ya

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1 Jawaban

  • <BAC = c
    c = 55°

    55 + 85 + a = 180
    140 + a = 180
    a = 40°

    a + b + c = 180
    40 + b + 55 = 180
    95 + b = 180
    b = 85°

    jawaban B

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