Here are some examples:
* Pentagon: A five-sided polygon.
* Pentagram: A five-pointed star.
* Pentatonic scale: A musical scale with five notes.
* Pentillion: A number equal to 10^15 (one million trillion).
It's important to note that "pent" is not exclusively used in mathematical contexts. It can also be found in other fields like biology (pentaradial symmetry) and linguistics (pentasyllabic words).