Question

In figura din imagine HG║EF. Calculati perimetrul ΔDHG. rezolvare completa.

Answer 1

∆EDF
HG || EF => Teorema Fundamentala a Asemanarii
=>DH/EH=DG/GF=HG/EF
DH/9=DG/6=4/10
DH/9=4/10
10DH=9×4
10DH=36
DH=36/10
DH=3,6cm

DG/6=4/10
10DG=6×4
10DG=24
DG=24:10
DG=2,4cm

P∆DHG=HD+HG+GD=3,6+4+2,4=6+4=10cm