- Kingston (formerly Appletree Cove) is an unincorporated community and census-designated place (CDP) in Kitsap County, Washington, United States. The population was 2,515 at the 2020 census. Kingston is along the shores of Appletree Cove and Puget Sound, and is home to a major Washington State Ferry terminal linking it to Edmonds.
- Geometry (Wikipedia)
Geometry (from Ancient Greek γεωμετρία (geōmetría) ’land measurement’; from γῆ (gê) ’earth, land’, and μέτρον (métron) ‘a measure’) is a branch of mathematics concerned with properties of space such as the distance, shape, size, and relative position of figures. Geometry is, along with arithmetic, one of the oldest branches of mathematics. A mathematician who works in the field of geometry is called a geometer. Until the 19th century, geometry was almost exclusively devoted to Euclidean geometry, which includes the notions of point, line, plane, distance, angle, surface, and curve, as fundamental concepts.