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Jawaban:
228
Penjelasan dengan langkah-langkah:
panjang lilitan = p
n = banyak pipa yang disentuh tali
d = diameter
r = jari jari
p = n.d + 2.π.r
= 5 . 28 + 2 . 22/7 . 14
= 140 + 2.44
= 140 + 88
= 228