document.write( "Question 255341: if the hypotenuse of a right triangle is 30 cm long and one leg is twice as long as the other, how long are the legs of the triangle? \n" ); document.write( "
Algebra.Com's Answer #187626 by richwmiller(17219)\"\" \"About 
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30^2=a^2+(2a)^2
\n" ); document.write( "900=a^2+4a^2
\n" ); document.write( "900=5a^2\r
\n" ); document.write( "\n" ); document.write( "180=a^2
\n" ); document.write( "\"6sqrt%285%29\"=a
\n" ); document.write( "a=13.4164 cm
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