What 3 d shape has 16 vertices?

just as you extract a cube out of a square, when you extract a 3d object from an octagon then it would have 16 vertices. it has 16 vertices, 10 faces 24 edges.

i think you were asking about a tesseract it is not a 3d shape but is 4d. just as a cube for a square,tesseract is for cube.

it looks like a smaller cube inside a larger cube where all corners of larger one are connected to smaller one respectively.

making this simple

join two points = line

join two parallel lines = square

join two parallel squares= cube

join two parallel cubes = tesseract.

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