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An example of a frustum of a hexagonal pyramid (a.k.a. hexagonal frustum) from Wikipedia:

An example of hexagonal frustum

Is there a quick way to build one, given the Region of two $n$-sided polygon bases?

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    $\begingroup$ Are the two hexagons 1. already embedded in 3D; and 2. always guaranteed to be parallel? At the very least, one possibility is to use ConvexHullMesh[] on the points comprising the two faces. $\endgroup$
    – J. M.'s torpor
    Jan 26 at 17:36
  • $\begingroup$ @J.M. 1) Yes. 2) Yes. $\endgroup$ Jan 26 at 17:41
  • $\begingroup$ @J.M. Awesome! Its sibling ConvexHullRegion solves my problem completely! $\endgroup$ Jan 26 at 17:54
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    $\begingroup$ Please answer your own question, then. ;) $\endgroup$
    – J. M.'s torpor
    Jan 26 at 17:57
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Solution comes from @J.M.'s ennui. Example:

pts1 = Append[0.] /@ N[CirclePoints[2, 6]]
pts2 = Append[3.5] /@ N[CirclePoints[{1, 0}, 1, 6]]
ConvexHullRegion[pts1~Join~pts2] // Region

Result

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  • $\begingroup$ Nicely done. $\phantom{}$ $\endgroup$
    – J. M.'s torpor
    Jan 26 at 18:13

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