a simple shape of Euclidean geometry that is the set of all points in a plane that are at a given distance from a given point, the centre. The distance ...

of a circle or sphere is the length of a line segment from its center to its perimeter. The name comes from Latin radius, meaning ...

of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. I

is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B ...

semicircle is a one- dimensional locus of points that forms half of a circle. The full arc of a semicircle always

is the linear distance around the edge of a closed curve or circular object.

Determining the length of an irregular arc segment is also called rectification of a curve. Historically, many methods were used for specific curves. The advent of ...

The "pizza" slice is called a Sector. And the slice made by a chord is called a Segment.

The "pizza" slice is called a Sector. And the slice made by a chord is called a Segment.

A line which touches a circle or ellipse at just one point. Below, the blue line is a tangent to the circle c. Note the radius to the point of tangency is always ...

Making contact at a single point or along a line; touching but not intersecting. 2. Irrelevant. n. 1. A line, curve, or surfac

A straight line connecting two points on a curve.

. Geometry. A secant is a line that intersects a circle at two points. See Secant of a circle. 2. Trigonometry