Move the points in the grafic or define the point coordinates in the numeric field.
The radius r is the distance from the center of the circle to the circle circumference. A circle is defined by the set of all points that have the distance r to a point.
The chord or secant connects two points of the circle circumference. The length of the secant s is:
with the opening angle α of the sector uand the height h of the circular section.
The arc length l of the circle segment is:
The area S of the circle sector is:
The circular section is the area between the secant and the circle circumference. The area Sa of the circular section is:
The height ha of the circular section is: