Question

Intr-un partulater convex A,B,C,D masurile unghiurilor sunt invers proportionale cu nr. 1supra2 ,1 supara 3,1 supra 6 ,1 supra 7 . aflati masurile unghiurilor

Answer 1

a+b+c+d=360 (grade )
a/1/2=b/1/3 =c/1/6 =d /1/7
a+b+c+d  /1/2+1/3+1/6+1/7  =360/21+14+7+6/42=
360/48/42 =360*42/48 = 315
a/1/2 =315  ;a=315*1/2 =157.5 gr.
b/1/3 =315  ;b =315/3 =105 gr.
c/1/6 =315  ;c =315/6 =52.5 gr
d /1/7 =315  ; d =315/7 =45 gr
 (V :  157.5+105+52.5+45 =360 grade)