Ответ:
L = 2πr
d = 2r = 2L/2π = L/π
d = 14.852/3.14 ≈ 4.73
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Ответ:
L = 2πr
d = 2r = 2L/2π = L/π
d = 14.852/3.14 ≈ 4.73