The thickness of a hollow metallic pipe is 2 cm. It is 35 cm long and its inner radius is 12 cm.
Find the volume of metal used in making pipe. Pipe is opened at either end.
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Answered by
1
Answer:
ANSWER
Inner radius, r = 12 cm
Thickness of cylinder = 2 cm
Outer radius = R = 12+2 = 14 cm
Height of cylinder, h = 35 cm
Volume of the wood = π(R
2
−r
2
)h
=
7
22
×[(14)
2
−(12)
2
]×35
=
7
22
×(14+12)×(14−12)×35
=22×26×2×5=5720 cm
3
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Answered by
0
Answer:
Inner radius, r = 12 cm
Thickness of cylinder = 2 cm
Outer radius = R = 12+2 = 14 cm
Height of cylinder, h = 35 cm
Volume of the wood = π(R
2
−r
2
)h
=
7
22
×[(14)
2
−(12)
2
]×35
=
7
22
×(14+12)×(14−12)×35
=22×26×2×5=5720 cm
3
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