Points to Half Circles calculator

Points

32-point compass rose.

Source: Wikipedia

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

Points to Half Circles Conversion Table

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

Selected rounding: none (You can change it above in the dropdown)

• 

  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°.
• 

  Point (11.25°)

  The points of the compass mark the divisions on a compass, which is primarily divided into four points: north, south, east, and west. These cardinal directions are further subdivided by the addition of the four intercardinal (or ordinal) directions—northeast (NE), southeast (SE), southwest (SW), and northwest (NW)—to indicate the eight principal winds. In meteorological usage, further intermediate points between cardinal and ordinal points, such as north-northeast (NNE) are added to give the 16 points of a compass rose. The European nautical tradition retained the term "one point" to describe 1⁄32 of a circle in such phrases as "two points to starboard". By the middle of the eighteenth century, the 32-point system was extended with half- and quarter-points to allow 128 directions to be differentiated.