Question

4 sum fat i will mark brainliest

Answer 1

the simple concept behind these type of questions is that the volume never changes when a substance is moulded into another

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Answer 2

Volume of the sphere = 4/3 Π r3 = 4/3 x Π x 93 = 81 x 12 Π cm3

The wire is in cylindrical form, Let its length be L cm.

Its radius = 1/2 (2/5) = 1/5 cm

Since, Volume of the wire = Volume of the sphere

Therefore, Π x (1/5)2 x L = 81 x 12 Π

Implies, L = 81 x 12 x 25 cm = 24300 cm = 243 m

Hence, the length of the wire is 243 m.