Răspunsuri

2014-04-16T12:04:33+03:00
A+b=90
a=2k
b=7k
2k+7k=90
9k=90
k=10

Deci a =20 grade
       b=70  grade
De unde b este 70 de grade ?
pai b era egal cu 7 k
2014-04-16T12:05:33+03:00
Unghi complementar=90 grade
A+B=90
A=2k
B=7K

2K+7K=90
9K=90
K=90:9
K=10

A=2*10
A=20 grade

B=7*10=70 grade
3 4 3