One. The line of symmetry for a 180 degree arc (a semicircle) is the line that bisects the arc.
semicircle
It is 27.49 units.
semicircle
180x2= 360 degrees
The complete arc of a semicircle is 180 degrees
Semicircle
One. The line of symmetry for a 180 degree arc (a semicircle) is the line that bisects the arc.
minor arc
semicircle
Major arc.
It is 27.49 units.
semicircle
A semicircle.
Major arc is the longer of two arcs.
minor arc
180x2= 360 degrees