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September 21, 2014

Homework Help: math

Posted by Pyramid on Wednesday, April 20, 2011 at 11:22am.

Find the angle in degree between adjacent sides of the pyramid PQRS. P(4,0,0), Q (4,4,0), R(0, 4,0), S (2, 2, 9). The base of the pyramid is not considered a side.

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