Răspuns :
a+b =30 cm
a/4 =b/6
a/4+b/6 =a+b/4+6 =30/10 =3
a/4 =3 ; a =4*3 =12 cm
b/6 =3 ; b =6*3 =18 cm
a/4 =b/6
a/4+b/6 =a+b/4+6 =30/10 =3
a/4 =3 ; a =4*3 =12 cm
b/6 =3 ; b =6*3 =18 cm