Question

Determine o valor de x no triangulo abaixo

Answer 1

Seno 30° = x / 12

........1 / 2 = x / 12

........=> x = 12 : 2

........=> x = 6......( resposta)

Answer 2

x/12= Seno de 30°

x/12=1/2

Meios pelos extremos

12*1=2x

12=2x

x=12/2

x=6