Matematika

Pertanyaan

jari jari : ..... (cm)
diameter : 14 (cm)
tinggi : 30 (cm)
luas alas : .... (cm²)
luas selimut : ..... (cm²)
luas permukaan : ..... (cm²)
volume : ..... (cm³)


TOLONG DIJAWAB DENGAN CARANYA YAH, BESOK DIKUMPUL

2 Jawaban

  • r=d/2=14/2=7cm
    L alas= phixrxr = 22/7 x 7 x 7 = 154
    L sel= phixrxt = 22/7 x 7 x 30 = 660
    Lp= 2xphixr (r+t)
    = 2 x 22/7 x 7 (7+30)
    = 44(37)
    = 1.628
    V = phixrxrxt
    = 22/7 x 7 x 7 x 30
    = 4.620
  • r = 14/2
    = 7 cm
    l.alas = πr^2
    = 22/7. 49
    = 44 cm^2
    l.selimut = 2.π.r.t
    = 2. 22/7 . 7. 30
    = 1320 cm^2
    l. permukàan = 2.π.r. (t+r)
    = 2. 22/7. 7. (30+7)
    = 44 (37)
    = 1628 cm^2
    volume = π.r^2.t
    = 22/7. 49. 30
    = 1320 cm^3

    Jadikan jawaban terbrainly yaa

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