Difference between revisions of "Comments:Circle Command"
From GeoGebra Manual
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===Use circles to fix the distance between two objects=== | ===Use circles to fix the distance between two objects=== | ||
− | Circles are a great way to make the distance between two objects constant: If there are two points | + | Circles are a great way to make the distance between two objects constant: If there are two points A and B on two lines g (point A) and h (point B) where A can be moved and B should have the constant distance r to A you can define B as the intersection between the line h and the circle around A with the radius r. As a circle intersects a line at two points (in case it's not tangetial or passing by) you have to hide & ignore the second intersection. |
[[File:Fixed_Distance_With_Circle.png|thumb|300px|center|An illustration of the described technique to fix the distance between two points ''A'' and ''B<sub>1</sub>'']] | [[File:Fixed_Distance_With_Circle.png|thumb|300px|center|An illustration of the described technique to fix the distance between two points ''A'' and ''B<sub>1</sub>'']] | ||
[[Category:Commands]] | [[Category:Commands]] |
Revision as of 15:03, 3 July 2009
Tips
Use circles to fix the distance between two objects
Circles are a great way to make the distance between two objects constant: If there are two points A and B on two lines g (point A) and h (point B) where A can be moved and B should have the constant distance r to A you can define B as the intersection between the line h and the circle around A with the radius r. As a circle intersects a line at two points (in case it's not tangetial or passing by) you have to hide & ignore the second intersection.