Jawabanmu

2014-03-26T18:28:48+07:00
 [tex]L_{1} :L_{2} = 9 : 25 = \frac{6.( r_{1} )^{2} }{6.( r_{2}} = ( \frac{ r_{1} }{ r_{2} } )^{2} = (\frac{6}{10} )^{2} = \frac{9}{25} [/tex] 


2014-03-26T18:31:33+07:00
L:6×6×6=216
L:10×10×10=1000
216:1000=1 : 4,6