AB ....6 cm
AC....12 cm
MN.....50 cm
MP....?cm
Segmentele sunt direct proportionale in asa mod :
[tex] \frac{AC}{AB} = \frac{12}{6} =2[/tex]
[tex] \frac{MN}{MP} = \frac{50}{25} =2[/tex]
Rezulta ca [tex] \frac{AC}{AB} = \frac{MN}{MP} =2[/tex]
⇒K=2
Deci x = 25 sau MP = 25 cm