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regular tetrahedron

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A regular tetrahedron 2017-03-12
From Jeramie:
When we have a regular tetrahedron, is it always true that all the angles of the triangles measure 60 degrees?
Answered by Penny Nom.
The volume of an irregular tetrahedron 2012-02-22
From Brittany:
If I am given an irregular tetrahedron with the coordinates of the 4 points how do I find the volume? For example I am asked to find the volume and only given the points A(-4,-3,5), B(2,-1,2), C(0,-5,0), and D(-2,0,0) can you shown me the working and formular to find the volume?
Answered by Robert Dawson.
The volume of an irregular tetrahedron 2003-11-24
From Peter:
How do I calculate the volume of an irregular shaped tetrahedron where:-
side a = 1.4 m
side b = 1.4 m
side c = 1.2 m
and height = 0.75 m at the junction of sides a and b.

Answered by Penny Nom.
 
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