Question

1) ΔABC
MN || BC 
M ∈ (AB)
N ∈ (AC)
-------------\---
a) AM = 5 CM, AB = 12 cm, NC = 4 cm. Se cere AN, AC.
b)MB = 6 dm, NC = 12 dm, AC = 28 dm. Se cere AM, AB.

Answer 1

a) [AM] congruient [AN] ----> AN= 5
AC=AN+NC
AC=5+4
AC=9
b)AC=AN+NC
28=AN+12
AN=28-12
AN=16
[AM] congruiient [AN]----> AM=16
AB=AM+MB
AB=16+6
AB=22 
Gata ..................Succes :)))))