Question

impartiti segmentul AB de 12cm in 3parti direct proportionale cu numerele 10;9;5

Answer 1

a/10 =b/9 =c/5       a+b+c =12

a/10+b/9+c/5 =a+b+c/10+9+5 =12/24 =0.5

a/10 =0.5  ;  a =10*0.5 =5
b/9 =0.5  ;     b =9*0.5 =4.5
c/5 =0.5  ;     c =5*0.5 =2.5
v  ;   5+4.5+2.5 =12