Semicircle
From Free net encyclopedia
In mathematics (more specifically geometry), a semicircle is a two-dimensional geometric shape that forms half of a circle. Being half of a circle's 360°, the arc of a semicircle will always measure 180°.
Outside of mathematics, a semicircle can mean the arrangement of people or objects in a uncomplete circle. In popular culture, it need not mean exactly half of a circle, but can be any part of a complete circle.
[edit]