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Apps of differentiation

  1. May 21, 2006 #1
    3 The cross-section of a solid prism is an equilateral triangle, The sum of the lengths of the edges of the prsim is 18 cm.
    a. find the exact side length of the triangle in cm so that the volume is maximised.
    b. Find the maximum volume in cm^3, correct to 2dp

    i cant seem to find the correct answer for this question
    could any one please help me?
    thank you
  2. jcsd
  3. May 21, 2006 #2
    wheres ur working?
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