Question

dado o triângulo FEV,determine

Answer 1

x² = 5² + 12²
x² = 25 + 144
x² = 169
x = √169
x = 13
sen E = _12_    cos E = _5_    tg E = _sen E_ ⇒ tg E = _12_×_13_ = _12_
               13                    13                   cos E                   13       5          5
sen G = _5_     cos G = _12_  tg G = _sen G_⇒ tg G = _5_×_13_ = _5_
               13                     13                 cos G                  13     12       12