Construction Algorithm |
1 |
|
Construct
a line AB as a given base of the rectangle. |
2 |
|
Construct
a perpendicular line to AB through the point B. |
3 |
|
Construct
a point C on the perpendicular line. |
4 |
|
The
translation button is already generated in the construction area. |
5 |
|
Select
the line AB and the two points A and B as well then press the
translation button [B to C] to construct the image of the line AB by
the defined translation. |
6 |
|
Join
up the four points A, B, C and D to get the required rectangle. |
7 |
|
Switch
to drag mode. Pick a free element. Move it around to check your
construction. |
Construction Theorems
|
A rectangle is a
parallelogram with a right angle.
If two sides of a quadrilateral are parallel and equal in length, then
the quadrilateral is a parallelogram.
Translation preserves the distance between points.
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