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Here is your answer,.⬇️⬇️
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Here, we have,
Diameter of the cylinder = 10cm = 100mm.
Height of the cylinder = 12cm = 120mm.
So, radius = 100/2 = 50mm.
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Now, its curved surface area
= 2 * pi * radius * height
= 2 * 314/100 * 50 * 120 sq.mm
= 314 * 120 sq.mm
= 37680 sq.mm
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Thus, the length of wire required
= 37680/3 = 12560 mm.
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Volume of the wire
= pi * r * r * h
= 314/100 * 3/2 *3/2 * 12560 cu.mm
= 314/10 * 1256 * 9/4 cu.mm
= 394384/10 * 9/4 cu.mm
= 88736.4 cu.mm
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Now, we have,
1 cu.cm = 1000 cu.mm
So, 88736.4 cu.mm = 88.7364 cu.cm
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So,mass of the wire
= density * volume
= 88.7364 * 8.8 g
= 781 g (approximately)
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➡️ Hence, the length of wire required is 12560 mm = 1256 cm, and the mass of the wire is 781 g (approx)
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Hope this helps,.
If helps, please mark it as brainliest ^_^
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REGARDS, ARNAB ✌️
THANK YOU