What is the name of an eight sided figure with rounded vertices?
8, eac point is vertices.
A prism with 10 faces would have 16 vertices. A pyramid with 10 faces would have 10 vertices. Since your figure is neither of these, you need to tell us what it is. In case your numbers were incorrect, here are the formulas: A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. A pyramid with an n-sided base will have n + 1 vertices, n + 1…
A 16 sided figure, really depends on what kind of figure it is. But the prefix for 16 would be hexadeca-, so if it was a polygon with 16 sides and 16 vertices it would be a hexadecagon (or hexakaidecagon). The conjunction -kai- is used by the Greeks in numbers that are from 13-19 (or all the teen, ex. thirTEEN, fourTEEN). The English numerical system have dropped the -kai- conjunction.