Răspunsuri

2014-04-22T19:39:05+03:00
M <(BAD) = 30 grade (1)   ;   (1), (2) ===> m <(ABD) = 180 grade - 90 grade - 30 grade 
m <(BDA) = 90 grade (2)   ;                                  =90 grade - 30 grade = 60 grade (3) ;

(3) ===>  m <(ACB) = 180 grade - 90 grade (masura unghiului A) - 60 grade (masura unghiului B) ;
                              = 90 grade - 60 grade = 30 grade ;
Raspuns final : m <(A) = 90 grade ; m <(B) = 60 grade ; m <(C) = 30 grade