Question 1139812
In what way, or by what method?

92  close to 100, close to 81.


{{{(10+9)/2=19/2=9.5}}}


{{{9.5^2=90.25}}}
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{{{9.6^2=92.16}}}
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{{{9.55^2=91.2}}}
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Closer to 9.6 than to 9.55.


The above is very crude.  There are better methods.