Matematika

Pertanyaan

plis bantuin donk 2 nomer
nomer 20 sama 21
plis sama caranya ya
plis bantuin donk 2 nomer nomer 20 sama 21 plis sama caranya ya

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2 Jawaban

  • 20.)
    L = Π × r × r
    L = 22/7 × 7 × 7
    L = 154 m

    21.)
    L = 2 × Π × r × (r + t)
    L = 2 × 22/7 × 7 × (7 + 16)
    L = 2 × 22/7 × 7 × 23
    L = 1012

  • 20) 22/7 x 7 x 7 = 154
    21) 22/7 x 7 x 7 = 154 x 16 = 2464

    Maaf klo salah..

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