Finding volume of a tetrahedron

The edge is 12 and the height is 12 for the tetrahedron. I know that tetrahedron consists of 4 equilateral triangles. I have a problem with finding the volume because i had two answers. first I... more

How to find the volume of a frustum?

The frustum has: radii of the top circle base is 9. the radii of the bottom circle is 12. The slant height is 6.  I know you draw the frustum into a cone by extending it. Then you do the volume of... more

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