About Lines
If you like the taste of dynamic geometry that you experience here, then contact AAMT about purchasing Cabri-Geometry II.
| Construction method | Construction data | Description |
|---|---|---|
| connect | points A, B | the line AB connecting two points A and B |
| angleBisector | points A, B, C
[plane D] |
the line AE bisecting angle BAC with E on BC in plane D |
| angleDivider | points A, B, C
[plane D] integer n |
the line AE with E on BC so that BAE is the nth part of the angle BAC in plane D |
| foot | 3 points A, B, C | the line AD drawn perpendicular to BC in the screen plane |
| point A
plane B |
the line AD drawn perpendicular to plane B with the point D lying on B | |
| chord | points A, B
circle C |
the intersection of the line AB in the circle C |
| bichord | circles A, B | the common chord connecting the two intersection points of the circles A and B |
| perpendicular | points A, B
[plane C] |
the line AD equal and perpendicular to AB in plane C |
| points A, B, D, E
[plane C] |
the line AF perpendicular to AB in plane C equal to DE | |
| point A, C, D
plane B |
the line EF perpendicular to plane B passing through A equal to CD with E lying on B | |
| cutoff | points A, B, C, D | the line AE equal to CD along the line AB |
| extend | points A, B, C, D | the line BE equal to CD so that A, B, and C are collinear with B between A and C |
| parallel | points A, B, C | the line AD parallel and equal to BC |
| similar | points A, B, D, E, F
[planes C, G] |
the line AH so that triangle ABH in plane C is similar to triangle DEF in plane G |
| proportion | 8 points A, B, C, D, E, F, G, H | the line GI along GH so that AB:CD = EF:GI |
| meanProportional | 6 points A, B, C, D, E, F | the line EG along EF so that AB:CD = CD:EG |
David E. Joyce
Department of Mathematics and Computer Science
Clark University
Worcester, MA 01610Email: djoyce@clarku.edu
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