document.write( "Question 329574: if a man walks 4 km east then 5 km south, how far is he from the point where he started? \n" ); document.write( "

Algebra.Com's Answer #236247 by Fombitz(32388) $\"\"$ $\"About$

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He walks two legs of a right triangle.
\n" ); document.write( "Use the Pythagorean theorem to calculate the hypotenuse.
\n" ); document.write( " $\"H%5E2=4%5E2%2B5%5E2\"$
\n" ); document.write( " $\"H%5E2=16%2B25\"$
\n" ); document.write( " $\"H%5E2=41\"$
\n" ); document.write( " $\"H=sqrt%2841%29\"$ or approximately 6.4 km. \n" ); document.write( "

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