Lingkaran_
r = 63 cm
d = 2r = 126 cm
Panjang minimal sabuk lilitan yg menghubungkan 2 lingkaran dg r sama
= 2d + 2πr
= 252 + 396
= 648 cm ✔
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Lingkaran_
r = 63 cm
d = 2r = 126 cm
Panjang minimal sabuk lilitan yg menghubungkan 2 lingkaran dg r sama
= 2d + 2πr
= 252 + 396
= 648 cm ✔