Sagot :
bonjour
FH² = 1.2 ² + 0.9² = 2.25
FH = √2.25 = 1.5
EH² = 1.5² + 2 ² = 2.25 + 4 = 6.25
EH = √6.25 = 2.5
Bonjour,
FH² = FG + GH²
FH² = 1,2² + 0,9²
FH² = 1,44+0,81
FH² =2,25
FH = √2,25 =>1,5m
EH² = EF² + FH²
EH² = 2² +2,25
EH² 6,25
EH =√62,5 => 2,5m