An arc whose measure is less than 180 degrees is called a Minor Arc.
Major Arc
A major arc must measure over 180 degrees, or pi radians
Arc length = pi*r*theta/180 = 17.76 units of length.
84*r*pi/180 units of length where the radius is r units of length.
An arc that measures exactly 180 degrees is called a semicircle. In a circle, a semicircle is formed when an arc spans half of the circumference, which corresponds to 180 degrees. Semicircles are important in geometry and trigonometry, often used in calculations involving angles and circles.
A minor arc.
It is half the circumference of a circle that has an arc of 180 degrees
semicircle
a minor arc measures less than 180 degrees...
An arc whose measure is less than 180 degrees is called a Minor Arc.
Consist
Minor arc
It could be either acute or obtuse.
A radian measures the degree of the arc. For instance, π radians is 180°. Then, the arc with π radians measures 180°.
The complete arc of a semicircle is 180 degrees
Major Arc