Răspunsuri

2014-09-29T10:15:51+03:00
A, b, c, d - unghiuri

a+b+c+d=360
a=3k
b=4k
c=5k
d=6k

3k+4k+5k+6k=360
18k=360
k=20

a=20*3=60
b=20*4=80
c=20*5=100
d=20*6=120
5 4 5