This is known as an 'arc'
An arc is a portion of the circumference of a circle.
Portion of the area of a circle is called a sector.
nope a portion of a circles area is a triangle
pi X radius squared X the percent of the circle.
A wedge shaped portion of a circle is called a sector.
An arc.
A pie-shaped portion of a circle is called a "sector." A sector is defined by two radii and the arc between them, representing a fraction of the circle's area. The angle at the center of the circle determines the size of the sector.
An arc (circumference only), or a segment.
Chord
A sector.
an arc
The phase that follows the new moon phase when it appears as a small outer portion of a circle is the waxing crescent phase. This phase occurs as the illuminated portion of the Moon gradually increases in size.