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Equilateral Triangle (Posted on 2003-12-18) Difficulty: 3 of 5
Suppose ABC is an equilateral triangle and P is a point inside the triangle, such that PA = 3 cms., PB = 4 cms., and PC = 5 cms.
Then find the length of the side of the equilateral triangle.

No Solution Yet Submitted by Ravi Raja    
Rating: 4.0000 (5 votes)

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Solution Solution | Comment 13 of 19 |
Just plot the vertices of the triangle on the catesian plain which has the coordinates of (0,0),(s/2,s√3/2),(s,0). Then use the distance formula in obtaining 3 equations 3 unknowns. By manipulation you will get the value of s=6.76643 cm
  Posted by joel on 2004-01-02 22:48:42
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