Matematika

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tolong bantuan nya yah
tolong bantuan nya yah

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  • <boc = 360 - 165 = 195
    ab/105 = bc/195
    21/105 = bc/195
    bc = 195×21/105 = 39

    aob/105 = boc/195
    63/105 = boc/195
    boc = 195 × 63 / 105 = 117

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