The parts of the circle are the following:
• Circle/Center: ,A circle is the set of all points in the plane that are the same distance away from a specific point, called the center.
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• Radius,: The distance from the centre of the circle to its outer rim.
• Chord,: A line segment whose endpoints are on a circle.
• Diameter,: A chord that passes through the centre of the circle. The length of a diameter is two times the length of a radius.
• Secant,: A line that intersects a circle in two points.
• Tangent,: A line that intersects a circle in exactly one point.
• Point of Tangency,: The point where a tangent line touches the circle.