Matematika

Pertanyaan

Panjang BC = ......cm
Panjang BC = ......cm

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  • BC/QC = AC/PC
    (x + 2)/2 = 11,2/3,2
    3,2(x + 2) = 11,2.2
    3,2x + 6,4 = 22,4
    3,2x = 16
    x = 5 cm

    BC = x + 2 = 5 + 2 = 7

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