Lampshade 2 (AR Modeling Challenge)

Your Task: Recreate this lampshade in GeoGebra Augmented Reality by authoring 2 surface equations with domain restrictions. Clues: The 4 planes, if extended indefinitely, would intersect at (0, 0, 5). For the blue planes, the ratio For the pink planes, the ratio . The square opening at the top has a side length of 3 units. The projection of any diagonal crease (where 2 lateral faces of this truncated pyramid meet) onto the plane z = 0 is either the line or .