A pipe which height 20m. And diameter 7m If pipe tottly coverd with a wire which diameter is 3.5cm. So can you find wire length and volume??? Please please
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Answered by
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hlo mate
your answer
volume = πr^2h
diameter = 7cm
radius = 3.5 ( half of diameter )
22/7 × (3.5)^2 × 20
22/7 × 12.25 × 20
22 × 1.75 × 20
770cm^2
hope it helps...
your answer
volume = πr^2h
diameter = 7cm
radius = 3.5 ( half of diameter )
22/7 × (3.5)^2 × 20
22/7 × 12.25 × 20
22 × 1.75 × 20
770cm^2
hope it helps...
Answered by
0
2×22/7×7/2×20=2×22/7×3.5/2×h
h=7×20×2/3.5
h=80cm
h=7×20×2/3.5
h=80cm
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