Question

Determine o valor de c no triângulo abtusângulo abaixo.

Answer 1

Resposta:

Lei dos senos

c/sen30°=10/sen120°

c=10.sen30°/sen120°

sen120°=sen60°

c=10.sen30°/sen60°

c=10.1/2/(√3/2)

c=5.(2/√3)

c=10/√3.(√3/√3)

c=10√3/3 cm = 5,77 cm