SOLUTION: Suppose you need to walk from a point P to a Point Q. You can either walk in a line from P to Q or you can walk in a line from P to another point R and then walk in a line from R t

Question 577000: Suppose you need to walk from a point P to a Point Q. You can either walk in a line from P to Q or you can walk in a line from P to another point R and then walk in a line from R to Q. Which one is shorter? Please provide proof!
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Walk directly from P to Q (I believe this comes from one of Euler's postulates that the shortest distance between two points is a straight line). There are many proofs, some involving basic geometry, others involving vectors, others involving calculus.
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