Matematika

Pertanyaan

no 22 sama caranya makasih
no 22 sama caranya  makasih

1 Jawaban

  • Luas 1/2 O - luas 1/2 o

    Luas 1/2 O = 1/2 phi (6,5+3,5) ^2
    = 1/2 phi (10)^2
    = 50 phi cm^2

    luas 1/2 o = 1/2 phi (3,5)^2
    = 1/2 phi 12,25
    = 6,125 phi cm^2

    luas kain = 50 phi - 6,125 phi = 43,875 phi cm^2