Răspuns :
Masura unghuirulor in jurul unui punct este de 360 de grade
primul unghi are 360
suma 7+9+11+13=40
imarpti 260 la 40 iti va da 9
iar primul unghi are valuarea 7*9 grade
al doilea 9*9 grade
al trelea 11*9 grade
al patrula 13*9 grade
a/7=b/9=c/11=d/13=k
a/7=k=>7k
b/9=k=>9k
c/11=k=>11k
d/13=k=>13k
7k+9k+11k+13k=360
40k=360
k=9
a=9•7= 63
b=9•9=81
c=9•11=99
d=9•13=117
Sper ca te-am ajutat!
a/7=k=>7k
b/9=k=>9k
c/11=k=>11k
d/13=k=>13k
7k+9k+11k+13k=360
40k=360
k=9
a=9•7= 63
b=9•9=81
c=9•11=99
d=9•13=117
Sper ca te-am ajutat!