# Objectif 2 - Somme des angles d'un triangle (Figures Planes)
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:paperclip: [Fiche de cours](https://nuage03.apps.education.fr/index.php/s/RXc6kmyxJ7jgaC3)
:books: [Devoirs Maison : Automatismes](https://coopmaths.fr/alea/?uuid=bcbe1&id=5G31-1&n=1&d=10&s=1&cd=1&uuid=dc8c9&id=5G31&n=2&d=10&s=1-2-3-4-5&s2=false&cd=1&uuid=c2f77&id=5G31-2&n=2&d=10&s=1&cd=1&v=confeleve&v=eleve&title=&es=021100)
📚 [Travail coopératif](https://nuage03.apps.education.fr/index.php/s/2H3TwxXYk7nebKc)
<img src="https://pbs.twimg.com/profile_images/852661770036535296/oYcD0Q6W_400x400.jpg" width="30" alt="latex"> [source LaTeX](https://nuage03.apps.education.fr/index.php/s/c4xwe5qzDGA9cxT)
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<iframe scrolling="no" title="Somme des angles d'un triangle (animation)" src="https://www.geogebra.org/material/iframe/id/dygejvkj/width/500/height/399/border/888888/sfsb/true/smb/false/stb/false/stbh/false/ai/false/asb/false/sri/true/rc/false/ld/false/sdz/true/ctl/false" width="100%" height="250px" style="border:0px;"> </iframe>
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### Calcul mental
[Automatisme](https://mathsmentales.net/?i=321,e=correction,o=yes,s=1,so=h,f=n,a=,colors=,snd=null&p=0~t=Diapo%201~c=1~o=true_i=5GB1~o=0,1,2,3~q=0.-1.-2.-3.~p=~t=8~n=10)
<p style="text-align:center;"><iframe frameborder="0" height="300" src="https://mathsmentales.net/?i=321,e=correction,o=yes,s=1,so=h,f=n,a=,colors=,snd=null&p=0~t=Diapo%201~c=1~o=true_i=5GB1~o=0,1,2,3~q=0.-1.-2.-3.~p=~t=8~n=10" width="100%"></iframe></p>
#### Vidéo
<p><iframe allowfullscreen="" frameborder="0" src="https://www.youtube.com/embed/S1vCp-O7fbw?wmode=transparent" height="200"width="100%"></iframe></p>
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<p><iframe mozallowfullscreen="true" src="https://learningapps.org/watch?v=p64w7yoyk20" style="border:0px;width:100%;height:350px;" webkitallowfullscreen="true"></iframe></p>
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