We call it a "semi-circle"
A semi-circle
The half of a diameter of a circle is known as a radius.
a semi circle? common sense
Diameter
Yes.
Semi-circle. (2D) Hemi-sphere (3D)
another name for a half circle is semi-circle
Coca cola
a hemisphere
Half a circle is called a semi-circle. Sometimes it is called a half-moon.
John Stith Pemberton
a half circle? a half? semi circle? half sphere?