Question

A solid cube of metal each of whose sides measures 4.4 cm is melted to form a cylindrical wire of radius 1mm . find the length of the wire so obtained. ​

Answer 1

Volume of the solid cube=Side×Side

=(4.4×4.4×4.4)cm^3

=85.184cm^3

Volume of the solid cube=Area of cylindrical wire=85.184cm^3

Volume of a cylinder=πr^2h

=> 85.184cm^3=22/7×1^2×h

=> 85.184cm^3=22/7×1×h

=> 85.184cm^3=22/7×h

∴ h=85.184÷22/7

=85.184×7/22

=3.872×7

=27.104cm

Length of the wire=27.104cm

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Answer 2

this answer is step by step in the photo