document.write( "Question 210640: in a right triangle, the leangth of the hypotenuse is 20 inches and the length of one leg is 15 inches. What is the length of the other leg? \n" ); document.write( "

Algebra.Com's Answer #159146 by Earlsdon(6294) $\"\"$ $\"About$

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Use the Pythagorean theorem: $\"c%5E2+=+a%5E2+%2B+b%5E2\"$ where c is the length of the hypotenuse (20 inches), a is one of the other two legs, it doesn't matter which one so we'll use a = 15 inches. We have to find the length of b.
\n" ); document.write( " $\"20%5E2+=+15%5E2%2Bb%5E2\"$
\n" ); document.write( " $\"400+=+225+%2B+b%5E2\"$ Subtract 225 from both sides.
\n" ); document.write( " $\"175+=+b%5E2\"$ Take the square root of both sides.
\n" ); document.write( " $\"sqrt%28175%29+=+b\"$
\n" ); document.write( " $\"b+=+13.23\"$ inches. \n" ); document.write( "

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