30 = k * x1
10 = k * x2
3 = x1/x2 x1 = 3*x2
x+x1=25
x-x2=15
x1+x2=10 4*x2 = 10 x2=2,5 х= 17,5
k = 10 / x2 = 4
15 = 4 * x3 x3= 3,75 см длина 17,5-3,75=13,75 см
30 = k * x1
10 = k * x2
3 = x1/x2 x1 = 3*x2
x+x1=25
x-x2=15
x1+x2=10 4*x2 = 10 x2=2,5 х= 17,5
k = 10 / x2 = 4
15 = 4 * x3 x3= 3,75 см длина 17,5-3,75=13,75 см