Question

A rectangular solid metal by 60cm by 66cm by 10cm is melted and formed into a cylindrical wire with radius 2 cm. Find the length of the wire in meters

Answer 1

correct answer is 3125.57 cm

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Answer 2

Answer:

315cm or 3.15m

Step-by-step explanation:

volume of rectangular solid- 60 cm by 66cm by 10 cm.

radius of the cylindrical wire- 2cm

volume of the rectangular solid = volume of the cylindrical wire( as it is melted so the volume will remain unchanged)

volume of a cylinder= πr²h

let the length/height be l

l=60×66×10×7/22×2×2

=15×3×7

315cm or 3.15m

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