JoSakura JoSakura
  • 06-10-2017
  • Mathematics
contestada

Fie trapezul ABCD dreptunghic in A, BC||AD,CD=12, m unghiului BCD=60°, BC=2AD.
a) Aratati ca perimetrul trapezului ABCD este egal cu 6(5+radical din 3) cm.
b)calculati aria lui ABCD.
c)aflati sinusul unghiului BCA

Respuesta :

makcheyox60ox
makcheyox60ox makcheyox60ox
  • 06-10-2017
b is the correct answer i think
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