- Roundup, Montana (Wikipedia)
Roundup is a city in and the county seat of Musselshell County, Montana, United States. The population was 1,742 as of the 2020 census.
- Decagon (Wikipedia)
In geometry, a decagon (from the Greek δέκα déka and γωνία gonía, “ten angles”) is a ten-sided polygon or 10-gon. The total sum of the interior angles of a simple decagon is 1440°.
