File:Isosceles-trapezoid-definition-4-points-symmetry.svg
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Original file (SVG file, nominally 142 × 85 pixels, file size: 8 KB)
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Summary
editDescriptionIsosceles-trapezoid-definition-4-points-symmetry.svg |
English: The `main' defining property of symtras (isosceles trapezoids) , that constrasts this property to that deltoids |
Date | |
Source | Own work |
Author | Physis |
Licensing
editI, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Source code
editThe source code that generated the vector graphics (in Asymptote language):
import geometry;
pen emergenceStyle = dotted;
pen transformationStyle = lightred;
pen axisStyle = longdashdotted + heavyred;
pen topStyle = blue;
pen botStyle = green;
size(5cm);
point A = (-3, 0);
point D = (-2, 4);
line axis = Oy;
transform reflect = reflect(axis);
point B = reflect * A;
point C = reflect * D;
draw(axis, axisStyle);
path trapezoid = A--B--C--D--cycle;
draw(trapezoid, emergenceStyle);
dot("$A$", A, SW, botStyle);
dot("$A^\prime$ = B", B, SE, botStyle);
dot("$D^\prime$ = C", C, NE, topStyle);
dot("$D$", D, NW, topStyle);
real little = 0.3;
real dTop = distance(A, axis);
real dBot = distance(D, axis);
point PTop = midpoint(A--B) + little*dTop*N;
point PBot = midpoint(C--D) + little*dBot*N;
path reflTop = A..PTop..B;
path reflBot = C..PBot..D;
draw(reflTop, transformationStyle, Arrows, Margins);
draw(reflBot, transformationStyle, Arrows, Margins);
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:35, 25 December 2013 | 142 × 85 (8 KB) | Physis (talk | contribs) | User created page with UploadWizard |
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Width | 142.264 |
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Height | 84.662 |