SOLUTION: 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 5

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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?
Answer by mcshorr(1) About Me  (Show Source):
You can put this solution on YOUR website!
It's a right triangle with a side of 30 and hypotenuse of 50.
Use Pythagoras to find the other side.
50^2=30^2+x^2
x^2=2500-900=1600
x=400 meters (train's distance from the crossing)