Construction Algorithm |
1 |
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Construct
a line AB as a given base of the parallelogram. |
2 |
|
Construct
a point C above the line AB and the line passing through it parallels
AB. |
3 |
|
Construct
a line joining between B and C. |
4 |
|
Construct
a line parallel to BC through point A. |
5 |
|
Generate
the intersection points between the two lines to find the fourth vertex
D of the parallelogram. |
6 |
|
Join
up the four points A, B, C and D to get the required parallelogram. |
7 |
|
Switch
to drag mode. Pick a free element. Move it around to check your
construction. |
Construction Theorem
|
A parallelogram is a
quadrilateral, in which each two opposite sides are parallel.
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