Exercice n°1: A partir du triangle ISO, on construit les triangles équilatéraux SOU et RIS comme sur la figure ci-contre. 1) Quelle conjecture peut-on faire concernant les longueurs IU et OR? 2) Prouver que les triangles ORS et USI sont égaux puis démontrer la conjecture. R S U O

Exercice n°1: A partir du triangle ISO, on construit les triangles équilatéraux SOU et RIS comme sur la figure ci-contre. 1) Quelle conjecture peut-on faire concernant les longueurs IU et OR? 2) Prouver que les triangles ORS et USI sont égaux puis démontrer la conjecture. R S U O

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter1: Line And Angle Relationships

Section1.2: Angles And Their Relationships

Problem 37E: Draw a triangle with three acute angles. Construct angle bisectors for each of the three angles. On...

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Question

Help me please

Exercice n°1:
A partir du triangle ISO, on construit les triangles équilatéraux SOU et RIS
comme sur la figure ci-contre.
1) Quelle conjecture peut-on faire concernant les longueurs IU et OR?
2) Prouver que les triangles ORS et USI sont égaux puis démontrer la
conjecture.
R
S
U
O

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