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Tetrahedron


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#1 nena82

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Posted 06 March 2014 - 04:41 PM

The following three coordinates are vertices of a regular tetrahedron circumscribed by the earth (assume spherical).  The answer is at the fourth.

P1:  S 17.6829061279° E 175.937938962°
P2:  N 26.7978332041° E 072.5860786255°
P3:  S 52.1980005058° W 015.0157003564°

 

 

Anyone know how to solve this?


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#2 bonanova

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Posted 07 March 2014 - 01:29 PM

There is a straightforward procedure for this.

 

Spoiler for Goes like this


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
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#3 TimeSpaceLightForce

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Posted 08 March 2014 - 08:39 PM

Spoiler for graphical solution

 


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