Question

me ajudem pelo amor de Deuus​

Answer 1

Resposta:

alternativa 2

S = S1 + S2 > S = S1^2 + S2^2 + 2. S1.S2. Cos 120

S = 10^2 + 6^ 2 + 2. 10.6. - 1/2

S = 100 + 36 - 60

S = 136 - 60

S = 76

S = raiz 76

fatora

76 /2

38/ 2

19 / 19

1

S = 2raiz 19

$2\sqrt{19}$