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Answered by
3
Outer Radius = 16 /2
R = 8 cm
Inner Radius = Outer Radius - Thickness of metal
r = 8 - 2 = 6 cm
Height = 100 m = 10000 cm
Volume = pi R^2 h - pi r^2 h
= pi h ( R^2 - r^2)
= 22 × 10000 / 7 ( 64 - 36)
= 220000 × 28 / 7
= 220000 × 4 cm^3
= 880000 cm^3
Total iron used = 880000 cm^3
◕‿◕
R = 8 cm
Inner Radius = Outer Radius - Thickness of metal
r = 8 - 2 = 6 cm
Height = 100 m = 10000 cm
Volume = pi R^2 h - pi r^2 h
= pi h ( R^2 - r^2)
= 22 × 10000 / 7 ( 64 - 36)
= 220000 × 28 / 7
= 220000 × 4 cm^3
= 880000 cm^3
Total iron used = 880000 cm^3
◕‿◕
Anonymous:
Hi bro
100m=1000 cm
1 m = 100 cm So, 100 m = 10000 cm
oh
sorry
just confused
Edit it bro
really sorry
ok
iam in confusion
Answered by
1
Hi!!!!
Here is yr answer-------
Thickness of the tube=2cm
l or h=100m or 10000cm
Outer diameter=16
outer radius=16/2=8cm
inner radius=8-2=6cm
Volume =πr^2h-πr^2h
=πh(r^2-r^2)
=22/7x10000(8^2-6^2)
=22/7x10000(64-36)
=220000/7(28)
=220000x4
=880000 cm^3
Therefor, 880000 cubic cm iron sheet is needed for making the cylindrical tube.
Hope it hlpzz....
#Aravind ▶➡▶➡▶
Here is yr answer-------
Thickness of the tube=2cm
l or h=100m or 10000cm
Outer diameter=16
outer radius=16/2=8cm
inner radius=8-2=6cm
Volume =πr^2h-πr^2h
=πh(r^2-r^2)
=22/7x10000(8^2-6^2)
=22/7x10000(64-36)
=220000/7(28)
=220000x4
=880000 cm^3
Therefor, 880000 cubic cm iron sheet is needed for making the cylindrical tube.
Hope it hlpzz....
#Aravind ▶➡▶➡▶
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