Question

Se considera punctele A,B,C,D, astfel in cat [AB]=[BC]=[CD].Stiind ca AD=21 cm:
A)Sa se afle lungimea segmentului BC.
B)Aratati ca AB=CD.
Urgent.

Answer 1

AD impartit la 3 segmente =7cm  daca AB=BC=CD=>AB=CD  AD=21cm ,AB=7,BC=7cm,CD=7cm