Question

A hollow metallic tube 21 cma diameter of 214 cm is melted and make into another tube of equal thick wire thickness and radius 14cm . find the length of the new tube​

Answer 1

$\huge\color{blue}{\textbf{\textsf{QUESTION⇨}}}$=A hollow metallic tube 21 cma diameter of 214 cm is melted and make into another tube of equal thick wire thickness and radius 14cm . find the length of the new tube​

$\huge\mathcal\colorbox{blue}{{\color{white}{!!!!!answer!!!!}}}$=volume of metallic cylinder=pi. {R^2-r^2}.h

R=5cm+0.5cm

=5.5cm

r=5cm

h=24cm

now

volume =pi. {(5.5)^2-(5)^2}24=22/7.(10.5)(0.5)24=396cm^3

now mass of metal =396x7.5=2970g

MARK AS BRAINALIST

Answer 2

Answer:

396x7.5=2970g

mark as brainliest please