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As we saw at school , is not so easy to make such an drawing . As Valentina said would be quite nice to do our howeworks in this way. Maybe after another one hundred years homework will be solved like this .

Posted on 22/03/11 18:56.

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For me GeoGebra is a very good program because we can with it to learn very easy math.

Posted on 23/03/11 15:21.

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The same as Bogdan, I would like to tell you that I love this program, GeoGebra. I think that GeoGebra is a very useful program, because it helps us to learn very easy math , and because it shows us the funny part of math.

Posted on 26/03/11 11:54.

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The incenter is I,the internal angle bisectors are FBI EAI and DCI,the points where the circle touchs the triangle are: E,D,F and the radius is ID

Posted on 31/03/11 11:57.

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Perfect answer , Pedro!

Posted on 01/04/11 18:01 in reply to Pedro Moreno.

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Good job Pedro, go for the next task.

Posted on 02/04/11 18:37 in reply to Pedro Moreno.

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The game is Very fun!

Posted on 07/04/11 11:54.

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Blog
Blogs »
The incircle or inscribed circle of a triangle- Romanian task
The incircle or inscribed circle of a triangle - Geogebra Foaie de lucru dinamică

The incircle or inscribed circle of a triangle

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

The incircle or inscribed circle of a triangle is the largest circle contained in the triangle. It touches (is tangent to) the three sides. The center of the incircle is called the triangle's incenter which can be found as the intersection of the three internal angle bisectors.
It this picture fiind the incenter, the three angle bisectors and, the points where the circle touch the triangle and the radius of the incircle (also known as the inradius, r )

Marilena Faiciuc, Creat cu GeoGebra


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Another fun geogebra picture .I really had fun playing with this.This could be a fun way of doing your homeworks aswell.

Posted on 16/03/11 20:58.

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Vali, which is the radius of the incircle?

Posted on 17/03/11 04:35 in reply to Valentina Stefanschi.

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The incenter is the point called I
The points where the circle touch the triangles are E,D and F
The radius of the incircle are the segments in red

Posted on 21/03/11 11:59.

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Very good , Mercedes! You've got a 10!

Posted on 21/03/11 16:13 in reply to Mercedes Montaner.

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I think that: EI , ID AND IF.I hope it's correct.

Posted on 21/03/11 19:03 in reply to Marilena Faiciuc.

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Your answer it's correct.

Posted on 21/03/11 19:38 in reply to Valentina Stefanschi.

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Thanks

Posted on 24/03/11 20:57 in reply to Marilena Faiciuc.

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Thank you

Posted on 24/03/11 20:59 in reply to Mercedes Montaner.

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The incenter is the point I, the bisectors are the points A, B, C and the points were the circle touch the triangle are E, F, D

Daniel and Gonzalo

Posted on 31/03/11 11:58.

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The incenter is the point I
The points D,E and F touch the triangles
The radius in red
We like this activity
Iris and Patricia

Posted on 28/04/11 11:55.

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Thank you Iris, I"m glad you like this type of activity!

Posted on 28/04/11 15:18 in reply to IrisMaria Gonzalez.

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