Question

A cube of metal, each of whose side measures 4 cm is melted it form a cylindrical wire of radius 2 mm.Find the length of wire obtained.​

Answer 1

The length of the wire is 3.388 m

Step-by-step explanation:

2.2 cm = 22 mm

Volume of cube = Volume of wire

Side³ = πr²L

Where L = length of wire

22³ = 22/7 x 1² x L

10648 = 22/7 L

L = 10648 x 7/22

L = 3388 mm OR 3.388 m

Hence the length of the wire is 3.388 m

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Answer 2

Answer:

The length of the wire is 3.388 m

Step-by-step explanation:

2.2 cm = 22 mm

Volume of cube = Volume of wire

Side³ = πr²L

Where L = length of wire

22³ = 22/7 x 1² x L

10648 = 22/7 L

L = 10648 x 7/22

L = 3388 mm OR 3.388 m

Hence the length of the wire is 3.388 m

Step-by-step explanation:

Hope this answer will help you.✌️