arc
The distance around the edge of a circle
Diameter is a straight line from edge to edge across the center. Perimeter or circumference is the distance around the circle.
A cardioid is the line a point on the edge of a circle traces when the circle is rolled around a circle of equal radius. A nephroid is the line a point on the edge of a circle traces when the circle is rolled around a circle of twice the radius.
The clue is in the root part of the word: Circum. It means 'all the way around'. You can circumnavigate the globe, you can be surrounded by the situation you are in and call that 'circumstances', or you can have the distance all the way around the edge of a circle, and that is Circumference.
It has one edge. The edge that connects the bottom circle to the cone part.
The Circumference of a circle is the distance around the outside of the circle. The Radius is the length of a line from the Center out to the Edge and ... The Diameter is the length of a line that passes through the Center from one Edge of the circle to the Edge on the opposite side.
if you mean the point that starts at the edge of the circle and ends in the center then this is the radius (:
The size of something, distance all around it.Circumference is the distance around the perimeter of a circle.
Yes it is. The radius of a circle is the length of the line from the center to any point on its edge.
a circle
A segment is part of a circle created by drawing a line from a point on the edge to another point on the edge.
2πr r being raduis