Dibantu no 32 yaa makasihh

x/x+4=6/8
x/x+4=3/4
3x+12=4x
x=12

CD/AB = Ls/Ls+AD
6/8 = Ls/Ls+4
6Ls+24= 8Ls
6Ls-8Ls= -24
-2Ls = -24
Ls = -24:-2
Ls = 12 m