Semi-circle
Not if the curve is not a circle.
Assuming the measure of the arc refers to the angle at the centre of the circle, the answer is 180 - 150 = 30 degrees.
A major arc is a portion of a circle that is greater than 180 degrees. Its measure is calculated as the difference between 360 degrees and the measure of the corresponding minor arc. Therefore, if a minor arc measures, for example, 120 degrees, the major arc would measure 240 degrees. In summary, a major arc's measure is always greater than 180 degrees and less than 360 degrees.
An arc whose central angle is obtuse measures more than 180 degrees but less than 360 degrees. This means that the length of the arc corresponds to the larger arc segment of the circle, as it spans more than half of the circle. Consequently, the measure of the arc is calculated as the obtuse angle itself, which directly determines the arc's degree measure.
If the arc is circular, such a figure is a semicircle or half circle.
An arc whose measure is less than 180 degrees is called a Minor Arc.
The complete arc of a semicircle is 180 degrees
Not if the curve is not a circle.
Minor arc
Assuming the measure of the arc refers to the angle at the centre of the circle, the answer is 180 - 150 = 30 degrees.
A major arc is a portion of a circle that is greater than 180 degrees. Its measure is calculated as the difference between 360 degrees and the measure of the corresponding minor arc. Therefore, if a minor arc measures, for example, 120 degrees, the major arc would measure 240 degrees. In summary, a major arc's measure is always greater than 180 degrees and less than 360 degrees.
major arc is the correct answer
An arc whose central angle is obtuse measures more than 180 degrees but less than 360 degrees. This means that the length of the arc corresponds to the larger arc segment of the circle, as it spans more than half of the circle. Consequently, the measure of the arc is calculated as the obtuse angle itself, which directly determines the arc's degree measure.
A major arc must measure over 180 degrees, or pi radians
less than 180 degrees
a minor arc measures less than 180 degrees...
If the arc is circular, such a figure is a semicircle or half circle.