//Example 13// length
clc;
clear;
close;
n123=1/3/15;//
tl=105;//cm
l123=15/5/1;//
k=tl/21;//
l1=15*k;//cm
l2=5*k;//cm
l3=k;//cm
disp(l1,"l1 length is,(cm)=")
disp(l2,"l2 length is,(cm)=")
disp(l3,"l3 length is,(cm)=")
//length l2 is calculated wrong in the textbook