Matematika

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tolong ya kak pliiiiiiiissss
tolong ya kak pliiiiiiiissss

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  • 4. d1=d2=d

    L = 1/2.d1.d2
    800 = 1/2.d^2
    d^2=1600
    d=√1600
    d=40

    5.
    Sisa
    =Lkertas-L 8 layang
    = (80x125)-8(1/2.40.45)
    = 2800cm^2

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