SOLUTION: Wanda is trying to locate the Fermat point P of triangle ABC, where A is at the origin, B is at (10,0), and C is at (3,5) (the Fermat point is the point such that the sum of its di

Algebra ->  Coordinate-system -> SOLUTION: Wanda is trying to locate the Fermat point P of triangle ABC, where A is at the origin, B is at (10,0), and C is at (3,5) (the Fermat point is the point such that the sum of its di      Log On


   



Question 1068663: Wanda is trying to locate the Fermat point P of triangle ABC, where A is at the origin, B is at (10,0), and C is at (3,5) (the Fermat point is the point such that the sum of its distances from the vertices of a triangle is minimized). She guesses that the point is at P = (4,2), and computes the sum of the distances from P to the vertices of triangle ABC. If she obtains m%2Asqrt%285%29+%2B+n%2Asqrt%2810%29+, where m and n are integers, what is m + n?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
D%5B1%5D%5E2=%284-0%29%5E2%2B%282-0%29%5E2
D%5B1%5D%5E2=16%2B4
D%5B1%5D%5E2=20
D%5B1%5D=4sqrt%285%29
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D%5B2%5D%5E2=%284-10%29%5E2%2B%282-0%29%5E2
D%5B2%5D%5E2=%28-6%29%5E2%2B4
D%5B2%5D%5E2=36%2B4
D%5B2%5D%5E2=40
D%5B2%5D=2sqrt%2810%29
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D%5B3%5D%5E2=%284-3%29%5E2%2B%282-5%29%5E2
D%5B3%5D%5E2=1%2B9
D%5B3%5D%5E2=10
D%5B3%5D=sqrt%2810%29
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So then,

Now solve for m and n.
And then add them to get the final answer.
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By the way, the actual minimum occurs at (3.34, 2.64).