Question

Va rog Rezolvați problemele 9,10

Answer 1

Răspuns:

9.

x/4 = y/9 = k

x=4k

y=9k

M.g.=rad(4k•9k)=rad36k^2=6k

6k=120

k=20

x=80

y=180

10.

1,2=12/10=6/5

C/I = 6/5 =>C=6I/5

M.a.=(6I/5 + I) : 2

M.a.=(11I/5) • 1/2

M.a.=11I/10

11I/10 = 11

I=10 ani

C=12 ani