Question

Fie ABCD un patrulater convex. Daca :

a) m(A)=55 grade , m(B)=75 grade si m(C)=120grade aflati m(D)

b) m(B)=83 grade, m(C)=90grade, si m(D)=102grade aflati m(A)

c) m(C)=67 grade, m(D)=110grade, si m(A)=81grade aflati m(B)

Dau coronita daca mi-l faceti repede.

Answer 1

a)360-(55+75+120 )=360-250 =110 grade
b )360- (83+90+102 )=360-275 =85 gr
c) 360- (67+110+81 )=360-258 =102 gr