document.write( "Question 305484: A car is traveling on a road that is perpendicular to a railroad track. When the car is 30 meters from the crossing, the car's new detector warns the driver that there is a train 50 meters from the car and heading toward the same crossing. how far is the train from the crossing? \n" ); document.write( "

Algebra.Com's Answer #218722 by mcshorr(1) $\"\"$ $\"About$

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It's a right triangle with a side of 30 and hypotenuse of 50.
\n" ); document.write( "Use Pythagoras to find the other side.
\n" ); document.write( "50^2=30^2+x^2
\n" ); document.write( "x^2=2500-900=1600
\n" ); document.write( "x=400 meters (train's distance from the crossing)
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