Respuestas

2014-02-24T15:17:37+01:00
AB=31/2 ´      A´B´=4X-6
BC=10          B`C`=8
CD=2X         C`D´=Z

AB/A`B`=BC/B`C`=CD/C`D`

(3.1/2)/4X-6=10/8   X=9/5

10/8=2X/Z
10/8=(18/5)/Z
Z=144/50=72/25