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Korvikt [17]
2 years ago
15

The diameter of a sphere is 42 cm. It is melted and drawn into a cylindrical wire of diameter 2.8cm then find the length of the

wire answer usGiven
diameterofasphere=42cm
radius=
2
42
​
=21cm
Now,
Volumeofsphere=
3
4
​
πr
3

=
3
4
​
×
7
22
​
×21×21×21
=4×22×21×21
=3,8808cm
3

Volumeofsphere=volumeofcylinder
38,808=πr
2
h
⇒38808=
7
22
​
×14×14×h
h=
11
696
​

h=63
Hence,lengthofwireis63cm.
​

​
History
1 answer:
emmasim [6.3K]2 years ago
3 0

Answer:

The awnser is 7.35

Explanation:

I am sorry if it is wrong

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