# CircularSegment[] command

There exists

How about this adding this command:- CircularSegment[ <Point M>, <Point A>, <Point B> ]

It would create the red area below. Yes, there is a workaround, but IMHO a student should be able to use this command to quickly define and find the circular segment of a circle part...This is one of the few parts of a circle where there is no command at this time. The green triangle is also a circle part but is easy to define with the polygon commands.

I hope the developers will add this command to the command list...

Thank you,

Tony

No, the command CircularArc[ <Midpoint>, <Point>, <Point> ] is the arc length of the central angle. When shaded it shows the area of a sector, the CircularArc command does not find the area of the sector.

The segment of a circle is the area bounded by a chord and an arc length of the subtended angle (this formula uses radians)

A = 1/2 r^2 (Θ - sin Θ)

Look at the attachment circleParts2.ggb for most definitions and formulas.

Tony

... Creates a segment between two points A and B.

Segment[ <Point A>, <Number a> ]

... Creates a segment with length a and starting point A.