Jawab: L= 2πr (r+t)
=2 . 3,14 . 15 (15 + t)
=5181=6,28 . 15
=5181 : 6,28 = 15 (15 + t)
=825 : 15 = 15 + t
=55 - 15 = t
=45cm
Penjelasan dengan langkah-langkah:
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Jawab: L= 2πr (r+t)
=2 . 3,14 . 15 (15 + t)
=5181=6,28 . 15
=5181 : 6,28 = 15 (15 + t)
=825 : 15 = 15 + t
=55 - 15 = t
=45cm
Penjelasan dengan langkah-langkah: