Răspunsuri

  • Utilizator Brainly
2014-08-22T11:15:30+03:00
Vezi figura atasata.
fie AB=baza mare
CD=baza mica=6
=>AD=BC=8
Ducem DN_|_AB
=>AB=CD+2*AN
in ΔAND, unde <DAN=60 avem
cos <DAN=AN/AD
1/2=AN/8
AB=4
=>AB=6+2*4=14