Its called a Cromlech. Crom meaning "bent" and lech meaning "flatstone."
My history class is currently focused on various monoliths.
The pre-Christian version was a circle with an equal-armed cross internal to the circle, called the "sun cross", representing the sun. When the Celts became Christian, the cross was Christianized. The life-giving sun was compared with Christ.
a circle
The semi circle theatres provided better view and acoustics for the audience.
The sun
My history class is currently focused on various monoliths.
Architrave
Individual upright stones are commonly referred to as standing stones or menhirs. These stones are often erected vertically and may have symbolic or cultural significance.
a is to jump
Ancient Aliens - 2009 The Monoliths 5-12 was released on: USA: 18 March 2013
a hemisphere
You can find it at ArcadePod.com
semicircleA half circle is called a semicircle.Half a circle is a semi-circle
A part of a circle between two points on a circle is called is called an arc.
Half a circle is called a semi-circle. Sometimes it is called a half-moon.
The inside of a circle is called its area.
The inside of a circle is called its area.