document.write( "Question 107381: In a right traingel ABC one leg is 7 inches and the hypotenuse is 20 inches, find the other leg. \n" ); document.write( "
Algebra.Com's Answer #78149 by Annabelle1(69)\"\" \"About 
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We use Pythagoras' theorem. \r
\n" ); document.write( "\n" ); document.write( "\"a%5E2%2Bb%5E2=c%5E2\"\r
\n" ); document.write( "\n" ); document.write( "c is your hypotenuse\r
\n" ); document.write( "\n" ); document.write( "so we have\r
\n" ); document.write( "\n" ); document.write( "\"7%5E2%2Bb%5E2=20%5E2\"
\n" ); document.write( "\"49%2Bb%5E2=400%7D%0D%0A%7B%7B%7Bb%5E2=400-49\"
\n" ); document.write( "\"b%5E2=351\"\r
\n" ); document.write( "\n" ); document.write( "\"b=sqrt%28351%29\"
\n" ); document.write( "\"b=18.73\"
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