Matematika

Pertanyaan

ada yang bisa perbandingan?
tolong ya
bantu 1 nomor aja gpp kok.
ada yang bisa perbandingan? tolong ya bantu 1 nomor aja gpp kok.

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1 Jawaban

  • 37. r2= 2r1
    V₁ : V₂ = (r₁)³ : (r₂)³
    V₁ : V₂ = (r₁)³ : (2r₁)³
    V₁ : V₂ = 1 : 8

    38. d₁= 1/3 d₂
    d₂ = 3 d₁
    r₂ = 3r₁
    V₁ : V₂ = (r₁)³ : (r₂)³ = (r₁)³ : (3r₁)³
    V₁: V₂ = 1 : 27

    39. r₂ = 1/2 r₁
    r₁ = 2r₂
    V₁: V₂= (r₁)³ : (r₂)³ = (2r₂)³ : (r₂)³
    V₁: V₂ = 8 : 1

    40. t= 2r
    Vbola : Vtabung = 4/3 π r³ : π r² t
    Vb : Vt = 4/3 π r³ : π  r² (2r)
    Vb : Vt = 4/3 : 2 = 4 : 6 = 2 : 3



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