bonjour
AB² = ( 3 + 1 )² + (2 - 1 ) ² = 4 ² + 1 ² = 17
BC² = ( - 2 - 3 )² + ( 5 - 2 )² = ( - 5 )² + 3 ² = 25 + 9 = 34
AC² = ( - 2 + 1)² + ( 5 - 1 )² = ( - 1 )² + 4 ² = 1 + 16 = 17
17 + 17 = 34
ABC est rectangle isocèle
AD² = ( 2 + 1 )² + ( 6 - 1 )² = 3 ² + 5 ² = 9 + 25 = 34
CD² = ( 2 + 2 )² + ( 6 - 5 )² = 4 ² + 1 ² = 17
donc moi je trouve un rectangle
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bonjour
AB² = ( 3 + 1 )² + (2 - 1 ) ² = 4 ² + 1 ² = 17
BC² = ( - 2 - 3 )² + ( 5 - 2 )² = ( - 5 )² + 3 ² = 25 + 9 = 34
AC² = ( - 2 + 1)² + ( 5 - 1 )² = ( - 1 )² + 4 ² = 1 + 16 = 17
17 + 17 = 34
ABC est rectangle isocèle
AD² = ( 2 + 1 )² + ( 6 - 1 )² = 3 ² + 5 ² = 9 + 25 = 34
CD² = ( 2 + 2 )² + ( 6 - 5 )² = 4 ² + 1 ² = 17
donc moi je trouve un rectangle