bonjour
1 ) faire figure
2) milieu de VE
( - 3 + 3 ) / 2 = 0
( 1 + 3) /2 = 2
G ( 0 ; 2 )
3 ) VT = ( - 2 + 3 )² + ( - 2 - 1 ) ² = 1² + ( - 3 )² = 1 + 9 = 10
VE = ( 3 + 3 )² + ( 3 - 1 )² = 9 ² + 2 ² = 81 + 4 = 85
4) TG = ( 0 + 2 )² + ( 2 + 2 )² = 4 + 16 = 20
GV = ( - 3 + 0 )² + ( 1 - 2 )² = ( - 3)² + ( - 1 )² = 9 + 1 = 10
TV = ( - 3 + 2 )² + ( 1 + 2 )² = ( - 1 )² + 3 ² = 1 + 9 = 10
GV = TV donc le triangle est isocèle
5) VERT
VE = 85
VT = 10
RT = ( - 2 - 4 )² + ( - 2 + 0 )² = ( - 6 )² + ( - 2 )² = 36 + 4 = 40
ER = ( 4 - 3 )² + ( 0 - 3 )² = 1 ² + ( - 3 )² = 1 + 9 = 10
conclus sa nature
je te laisse le soin de faire la suite, c'est du graphique
