Doar 14 pls am nevoie Urgent !!!!!!!!!!!

Doar 14 Pls Am Nevoie Urgent class=

Răspuns :

Ducem HH`⊥ BC , H`∈ BC si EE` ⊥ DC, E` ∈ DC. ΔEE`G ≡ ΔHH`F (C.U)