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Pp ≈ 113,04 cm²
Obwód koła = 2π × r = 6,28 × 6 ≈ 37,68
Pb = 37,68 × 24 ≈ 904,32
Pc = Pp + Pb = 113,04 + 904,32
Pc ≈ 1017,36 cm²
1017,36 × 105/100 ≈ 1068
Do wykonania pojemnika potrzeba około 1068 cm² blachy
P= π6² + 2π6 x 24
P=36π + 288π
P= 324π cm²
324π cm² + 5% x 324π cm²= 324 πcm² + 16,20π= 340,20π