Question

A wire of diameter 10 mm is drawn by melting
the sphere of radius 9 cm. The length of wire
would be
(A) 38.88 cm
(B) 38.88 m
(C) 77.76 cm
(D) 77.76 m​

Answer 1

Answer:

B) is correct

Step-by-step explanation:

equate the volume of sphere and wire(cylindrical)

change 10mm into 1 cm

Volume of sphere = volume of wire

4*π *9*9*9/3= π *.5*.5*L

L=38.88 m