Jawaban:
La = 2 × π × r²
La = 2 × 3,14 × 18 × 18 × 18
La = 6,28 × 18 × 18 × 18
La = 113,04 × 18 × 18
La = 2,034.72 × 18
La = 36,624.96 cm²
LS = 2 × π × r × t
LS = 2 × 3,14 × 18 × 7
LS = 791,28 cm²
V = π × r² × t
V = 3,14 × 18 × 18 × 7
V = 7,121.52 cm³
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Jawaban:
La = 2 × π × r²
La = 2 × 3,14 × 18 × 18 × 18
La = 6,28 × 18 × 18 × 18
La = 113,04 × 18 × 18
La = 2,034.72 × 18
La = 36,624.96 cm²
LS = 2 × π × r × t
LS = 2 × 3,14 × 18 × 7
LS = 791,28 cm²
V = π × r² × t
V = 3,14 × 18 × 18 × 7
V = 7,121.52 cm³