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Topic: Promontorium Similis
Replies: 3   Last Post: Sep 28, 2010 8:10 AM

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ontadian@hotmail.com

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Registered: 12/6/04
Promontorium Similis
Posted: Sep 25, 2010 6:28 PM
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An irregular triangular pyramid has base measurements of 10,11 and 12. The sum of all six edges equals 100. At each of the 3 sloping faces the angle at the apex is identical. What is this angle?.



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