Răspunsuri

2014-04-27T00:12:43+03:00
U1/4=U2/7=K
U1=4K SI U2=7K
FIE U3 AL TREILEA UNGHI
1) DACA U1=U3, 4K+4K+7K=180  15K=180 K=180/15=12 U1=U3=48 SI U2=84
2) DACA U3=U2, 4K+7K+7K=180 18K=180  K=10 U2=U3=70 SI U1=40
2014-04-27T08:47:28+03:00
A+b+c=180
dar, triunghiul este isoscel, deci, a=b

a=4k
b=7k

4k+4k+7k=180
15k=180
k=180:15
k=12

a=4*12
a=48 => b=48
c=7*12
c=84
1 5 1