- Pat Jollota and HistoryLink Staff
- Vancouver, located in Clark County in the southwestern part of Washington state, lies along the North Bank of the Columbia River, near its confluence with Oregon’s Willamette River. The site was originally inhabited by Chinook Indians. The city is named for George Vancouver (1758-1798), the British explorer who mapped the Northwest coast in 1792…
- Circle (Wikipedia)
A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. The distance between any point of the circle and the centre is called the radius.