Question

The radius of a metallic sphere is 9 cm
was melted to make a wire of diamet
4 mm. Find the length of the wire.​

Answer 1

Answer:

Step-by-step explanation:

radius =9cm

The wire is cylindrical in shape So its volume will be =πr 2

h where h is the length of the wire here

Volume of the sphere = Volume of the wire

i.e. =π(0.1) 2 h= 4 over 3

​

π(9) ^3

 (Since 1 mm = 0.1 cm)

or h=97200 cm = 972 m

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