Matematika

Pertanyaan

Apa Rumus luas 3/4 permukaan tabung jika diketahui volumenya

1 Jawaban

  • LP = 4.π.r²
    3/4 . LP = 3/4 . 4.π.r²
    3/4 LP = 3πr²

    V = 4/3 .πr³

    (3/4 LP)/V = (3πr²)/(4/3 .πr³)
    (3/4 LP)/V = 9/4r
    3/4 LP = 9V/4r

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