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K Roda = π × D
K Roda = 3,14 × 40
K Roda = 125,6 cm
Atau
K Roda = 2 × π × r
K Roda = 2 × 3,14 × 20
K Roda = 6,28 × 20
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SOAL 1
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K Roda = π × D
K Roda = 3,14 × 40
K Roda = 125,6 cm
Atau
K Roda = 2 × π × r
K Roda = 2 × 3,14 × 20
K Roda = 6,28 × 20
K Roda = 125,6 cm
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