Question 1084261
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The similarity coefficient is  {{{9.6/16}}} = {{{6/10}}} = 0.6  (the ratio of the smaller to the larger corresponding elements).


Therefore, the ratio of corresponding areas is {{{0.6^2}}} = 0.36.   Is it clear to you ?


If it is clear, then the lateral area of the smaller pyramid is 0.36 of the lateral area of the larger pyramid,

i.e. 0.36*320 = 115.2 square feet.
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