I am trying to make a 3D model drawing of a trophy stand that is rectangular & tapers as it goes up (pyramid), going from 44"x 24" at base to 38 1/2" x 12" at top and is 10 3/4" tall. The thickness of the parts are 3/4".

witch in trun means that the pitch (tapper angle) of the side is diffrent from the ends.

They don't make it easy for us do they! Can't us simple taper box angle chart!

I can make the individual rectangular side & end parts, then rotate them into position at the angles I need, but I can't get them to cut at the intersection and make a miter joint.

I need this so I can move the parts in a exploded representation and dimension the part with cut angles (both part dimension & edge pitch angle).

I remember doing this in 3D class ( I thought) but to long ago to remember where to find command. Intersect & subtract doesn't work for this.

I am using Acad 2006 full version. is this possible or do I need molding.