The part of the circumference of a circle is called an "arc." An arc is defined as a segment of the circle's boundary, formed between two points on the circle. The length of an arc can vary depending on the angle subtended at the center of the circle.
A line segment or a chord is not a part of a circle.
circle
As in a unit circle, 30 degrees is Pi/3.
60/360 = 1/6th of the whole circle
if you mean the point that starts at the edge of the circle and ends in the center then this is the radius (:
track sector cyllnder spiral
A line segment or a chord is not a part of a circle.
circle
Semi means part of. So semi circle is part of a circle.
60/360 = 1/6th of the whole circle
As in a unit circle, 30 degrees is Pi/3.
i think its the diameter
if you mean the point that starts at the edge of the circle and ends in the center then this is the radius (:
It means that the value represented by the circle is part of the solution set.
You would have to know the length of the radius. The center of the circle is at one end of the radius. If you just know where some part of the radius is, and not that the part touches the circle then you cannot know where the center is without at lest a point on the circumference.
It does not have a name, it does not exist.
A sector.