A term that means the height is exactly half the width. A true half circle is a true radius, but a true radius does not have to be a true half circle, ex. Eyebrow. (See Radius Terminology Diagram)
A term that means the height is exactly half the width. A true half circle is a true radius, but a true radius does not have to be a true half circle, ex. Eyebrow. (See Radius Terminology Diagram)