Question

A B C D colinare in aceasta ordine
AB=4 cm BC=5 cm CD= 2 cm
M mijlocul [AB
N mijlocul [CD]
Aflati AC BD AM ND AN MC MN
Rezolvare completa ( nu doar raspunsul )

Answer 1

AC=AB+BC=4+5=9 cm;
BD=BC+CD=5+2=7 cm;
AM=AB:2=2 cm;
ND=CD:2=1 cm;
AN=AC+CN=10 cm;
MC=MB+BC=2+5=7 cm;
MN=MC+CN=7+1=8 cm;