document.write( "Question 363185: A person drives due east for 20 miles and then due north for 30 miles. How far is she from where she started? \n" ); document.write( "
Algebra.Com's Answer #258923 by Fombitz(32388)\"\" \"About 
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The two displacements are legs of a right triangle.
\n" ); document.write( "The hypotenuse is the distance from the starting point.
\n" ); document.write( "Use the Pythagorean theorem,
\n" ); document.write( "\"20%5E2%2B30%5E2=D%5E2\"
\n" ); document.write( "\"D%5E2=400%2B900\"
\n" ); document.write( "\"D%5E2=1300\"
\n" ); document.write( "\"highlight%28D=36.1%29\" miles
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