An underground oil storage tank ABCDEFGH is part of an inverted square pyarmid, as shown in the diagram. the complete pyramid has asquare base of side 12 m and height 18 m.the depth of the tank is 12 m.(adsbygoogle = window.adsbygoogle || []).push({});

http://haniny.com/haniny/Square_pyramid.gif

when the depth of oil in the tank is h meters,show that the volume vm^3 is given by

V=4/27(h+6)^3 -32

oil is being added to the tank at the constant rate of 4.5m^3 s^-1 at the moment when the depth of oil is 8 m.Find the rate at which the depth is increasing

What is the solution? please

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# Square pyramid:

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