A
cylindrical tube open at both ends is made
of metal The internal diamefer of the tube
11:2 cm and
melcal thicknes
its length is 21cm. The
is o. 4 cm. Calculate the volume
of the metal.
Answers
Answered by
12
Answer:
Volume 25
Step-by-step explanation:
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Answered by
0
306.2cm
Step-by-step explanation:
Internal diameter = 11.2cm
Internal radius = 11.2/2=5.6cm
Length o= 21cm
Volume of internal cylinder =πr
2
h
=22×5.6×5.6×
7
21
=2069.76cm
2
External radius = R=(5.6+0.4)
Volume of external cylinder = πR
2
h
22×6×6×
7
21
2376cm
2
volume of metal = volume of external diameter
volume of internal diameter
(2376−2069.76)
306.24cm
3
306.2cm
3
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