Half Circles to Eighth Circles calculator

Half Circles

A semicircle with arithmetic and geometric means of a and b. In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, π radians, or a half-turn). It has only one line of symmetry (reflection symmetry). In non-technical usage, the term "semicircle" is sometimes used to refer to a half-disk, which is a two-dimensional geometric shape that also includes the diameter segment from one end of the arc to the other as well as all the interior points.

Source: Wikipedia

Eighth Circles

A circle divided into 8 equal parts (eighth circles).

Source: Wikipedia

Half Circles to Eighth Circles Conversion Table

Below you can generate and download as CSV, Excel, PDF or print the Half Circles to Eighth Circles conversion table based on your needs.

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• Half Circle (180°)

  A circular sector or circle sector (symbol: ⌔), is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. In the diagram, θ is the central angle in radians, r the radius of the circle, and L is the arc length of the minor sector. A half circle sector is equal to 180°.

• Eight Circle (45°)

  A circular sector or circle sector (symbol: ⌔), is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. In the diagram, θ is the central angle in radians, r the radius of the circle, and L is the arc length of the minor sector. An eighth circle sector is equal to 45°.