document.write( "Question 564036: two cars leave a crossroads at the same time. one heads north at 50 km/h and the other heads east at 70 km/h. how far apart are the cars after 2.0 hours? \n" ); document.write( "
Algebra.Com's Answer #365203 by mananth(16946)\"\" \"About 
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they are travelling at right angles to each other.
\n" ); document.write( "At any given instant they form a right triangle with their starting point
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\n" ); document.write( "after 2 hours one car is 100 km away from starting point and another car 140 km\r
\n" ); document.write( "\n" ); document.write( "leg1 = 100 km
\n" ); document.write( "Leg2 = 140 km
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\n" ); document.write( "Hypotenuse^2 100 ^2 + 140 ^2
\n" ); document.write( "Hypotenuse^2 10000 + 19600
\n" ); document.write( "Hypotenuse^2 29600
\n" ); document.write( "take the square root
\n" ); document.write( "Hypotenuse^2 172.05 km
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