Matematika

Pertanyaan

tolong di bantu yak no 18
tolong di bantu yak no 18

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  • mencari X
    72+6x = 180
    6x = 180-72
    x. = 108/6 = 18
    sudut ACB
    (7*18)+x = 180
    126+x. = 180
    x. = 180-126 = 54
    sudut BAC
    72+54+x = 180
    x = 180-126 = 54 (C)

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