document.write( "Question 132345: I need some help on this problem please: find out the length of sides a & b on the following triangle. A=x, b=3x and c = 19. I think I should use the pythagorean theorem. I squared 19 to get 361, but I don't know how to figure the rest. Any advice would be great. \n" ); document.write( "
Algebra.Com's Answer #96704 by checkley71(8403)\"\" \"About 
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IF YOU HAVE A RIGHT TRIANGLE AND THE 19 SIDE IS THE HYPOTENUSE THEN YES USE THE PYTHAGOREN THERUM:
\n" ); document.write( "X^2+(3X)^2=19^2
\n" ); document.write( "X^2+9X^2=361
\n" ); document.write( "10X^2=361
\n" ); document.write( "X^2=361/10
\n" ); document.write( "X=SQRT36.1
\n" ); document.write( "X=6.008 ANSWER FIOR THE SHORTER SIDE.
\n" ); document.write( "X=3*6008
\n" ); document.write( "X=18.025 ANSWER FOR THE LONGER SIDE.
\n" ); document.write( "PROOF
\n" ); document.write( "6.008^2+18.025^2=19^2
\n" ); document.write( "36+325=361
\n" ); document.write( "361=361
\n" ); document.write( "
\n" );