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Foxworthy246
Foxworthy246 Foxworthy246
  • 17-03-2015
  • Mathematics
Answered

A volcanic plug shaped like a cone has a diameter of 25 km and a height of 3.9 km.


What is the volume of the plug?

Round your final answer to one decimal place and use 3.14 to approximate pi.

Verified Answer :

Hippalectryon
Hippalectryon Hippalectryon
  • 17-03-2015

Volume of a cone of diameter D, height h:\(V=\frac{\pi}3*(\frac{D}2)^2*h\)

Hence \(V=3.14/3*(25000/2)^2*3900=6.4*10^{11} m^3\)

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