corrigé maths 1ere s indice bordas indice 55p71 Workbook 6e p32 Exo 8 pages 301 physique Transmath 4eme 2016 exercice 54 p 399 myriade MATH 6° 2016 Transmath 4eme 2016 ex 5 p 70 Transmath 4eme 2016 ex 5 p70 Transmath 4eme page 65 Transmath 4eme page 67 4EME myriade MATH 2016 correction cas degalitendes triangles