Răspunsuri

2014-08-25T00:13:13+03:00
 \frac{a}{b} =  \frac{1}{3} =>  b=3a
(3a+a)/2=36
4a/2=36
2a=36
a=18
b=3a, b=3x18, b=54

mg =  \sqrt{ab} =  \sqrt{18*54}  =  \sqrt{972} = 18 \sqrt{3}