document.write( "Question 25679: How do you find the unknown lenght of a leg given the lenghts of the hypotenuse and the other leg? \n" ); document.write( "
Algebra.Com's Answer #13795 by elima(1433)\"\" \"About 
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By using the pythagorean theorem;
\n" ); document.write( "\"a%5E2\"+\"b%5E2\"=\"c%5E2\"
\n" ); document.write( "Where a & b are legs and c is the hypotenuse, is all you do is plug in the given amounts and then solve for the unknown.
\n" ); document.write( "ex;
\n" ); document.write( "a=9
\n" ); document.write( "b=?
\n" ); document.write( "c=15
\n" ); document.write( "\"9%5E2\"+b=\"15%5E2\"
\n" ); document.write( "81+b=225
\n" ); document.write( "b=225-81
\n" ); document.write( "b=144
\n" ); document.write( "\"sqrt%28144%29\"=12
\n" ); document.write( "So b=12
\n" ); document.write( "Hope you understand
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