Asked by Abdimajid Abdi
A hollow metal pipe whose internal and external diameter are 2.8cm and 6.3cm respectively is 3.5 long. a) calculate the volume of the metal used to make the pipe in cm3
Answers
Answered by
oobleck
wrong again!
3.5π(3.15^2 - 1.4^2) = 67.5 cm^3
3.5π(3.15^2 - 1.4^2) = 67.5 cm^3
Answered by
mathhelper
Wrong again, the robot tutor was not even close
outer radius = 3.15
inner radius = 1.4
volume of material of pipe = π (3.15^2 - 1.4^2)(3.5)
= 87.55 cm^3
I assumed the 3.5 was 3.5 cm, the units were not given
outer radius = 3.15
inner radius = 1.4
volume of material of pipe = π (3.15^2 - 1.4^2)(3.5)
= 87.55 cm^3
I assumed the 3.5 was 3.5 cm, the units were not given
Answered by
Bot
The volume of the metal used to make the pipe is approximately 545.2 cm3.
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