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Mathematics, 16.02.2021 23:40 ogbobbythman6154

Bonjour, Avec un octogone
Dans la figure ci-dessous, ABCD est un carré de côté
12 cm et les segments de même longueur sont codés.

1. Justifier que les triangles API, JBK, ODN et MCL sont
des triangles égaux.

2. Calculer JK puis dire si l'octogone est un
octogone régulier.

3. Calculer l'aire Un octogone régulier
de l'octogone est un polygone à 8 côtés
IJKLMNOP
dont tous les côtés sont
de même longueur.

4. Les diagonales
du carré ABCD se coupent en S.
Construire la figure en vraie grandeur et tracer le
cercle de centre S et de diamètre 12 cm.

5. Le disque de centre S et de diamètre 12 cm a-t-il
une aire supérieure à l'aire de l'octogone? Justifier
la réponse


Bonjour,

Avec un octogoneDans la figure ci-dessous, ABCD est un carré de côté12 cm et les segment

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Answers: 3

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Bonjour, Avec un octogone
Dans la figure ci-dessous, ABCD est un carré de côté
12 cm et l...
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