Question 719434
a= 81 b=? and c=225.
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Assuming it's a right triangle, and that c is the hypotenuse,
{{{c^2 = a^2 + b^2}}}
{{{225^2 = 81^2 + b^2}}}
{{{b^2 = 50625 - 6561 = 44064}}}
{{{sqrt(44064)}}} =~ 209.9143