what do you call a ten sided shape
Decagon In geometry, a decagon is a ten-sided polygon or 10-gon.[1]
Pear-shaped The comparison is more or less literal when the term is applied to people, where it means narrow at the shoulders and wide at the hips, a use that goes back to at least 1815, and one that can have either positive connotations (as in Venus figurines) or negative, depending upon the context.