What Is Half a Circle Called in Geometry?


In geometry, a half a circle is called a semicircle. Half of its diameter is known as radius. It is considered as an arc which is one-half of a circle. A circle refers to a plane shape on two dimensional figures with a set of all points on a plane.
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1 Additional Answer
In geometry, half a circle is called a semicircle. A circle is a plane shape (two dimensional) and is defined as the set of all points on a plane that are a fixed distance from the centre.
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