Question

aflati masurile unghiurilor unui patrulater convex daca ele sint direct proportionale cu numerele
b)2,3,6,7;
c)6,8,10,12.

Answer 1

b)a+b+c+d =360grade
a/2=b/3 =c/6=d/7
a/2+b/3+c/6+d/7 =a+b+c+d / 2+3+6+7 =360/18 =20
a/2 =20  ;  a =2*20=40 gr.ade
b/3=20  ; b =3*20 =60 gr
c/6 =20   ;  c =6*20 =120 gr
d/7 =20    ;  d =7*20 =140 gr
verif  ;   40+60+120+140 =360 grade

c)  la fel