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Sagot :

VINS

Réponse :

bonsoir

(AB)² = ( 12 + 4)²+ ( - 5 - 3 )² = 16² + ( - 8 )² = 320

( BC)² = ( 2 - 12 )² + ( 3 + 5)² = ( - 10)² + 8² = 164

( AD)² = ( - 14 + 4 )² + ( 11 - 3 )² = ( - 10 )² + 8 ² = 164

(DC)² = ( 2 + 14 )² + ( 3 - 11 )² = 16 ² + ( - 8 )² = 320

ABCD est un rectangle

( AB)² = ( 4 - 2 )² + ( 0 - 3 )² = 2 ² + ( - 3 )² = 4 + 9 = 13

( BC)² = ( 10 - 4 )² + ( 4 - 0 )² = 6 ² + 4² = 36 + 16 = 52

(AC)² = ( 10 - 2 )² + ( 4 - 3 )² = 8² + 1 ² = 65

13 + 52 = 65

le triangle est rectangle  

Explications étape par étape

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