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No.36 tolong jawab dgn cara yg gampang ya
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No.36 tolong jawab dgn cara yg gampang ya Thanks

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1 Jawaban

  • LP bola = 90
    4 × π × r² = 90
    π × r² = 90/4
    π × r² = 45/2

    LP tabung = 2 × π × r × (r + t)
    LP tabung = 2 × π × r × (r + 2r)
    LP tabung = 2 × π × r × 3r
    LP tabung = 6 π × r²
    LP tabung = 6 (45/2)
    LP tabung = 135 cm²

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