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Va rooog!!Dau coroana!!

Va RooogDau Coroana class=

Răspuns :

[tex]A= \frac{AC*AB}{2}= \frac{4*4}{2}=8(u^2) \\ A= \frac{AB+DC}{2}*DE = \frac{6+3}{2}*4=18(u^2) [/tex]
Teodoraalbei
1)A=4·4/2=16/2=8

2)A=4·3/2=12/2=6 ADE
A=6  BDE
A=6  DCE 
A=(6+3)·4/2=9·4/2=18 ABCD