Matematika

Pertanyaan

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1 Jawaban

  • A3 + B2 = 180
    6x + 40 + 3x + 5 = 180
    9x + 45 = 180
    9x = 135
    x= 15 derajat

    B1 = A3 = 6x + 40 = 6(15) + 40 = 130
    A4 = 180 - 130 = 50

    Jawaban: B