A) ABE ACD(C G C). B) ABE ACD(THEO C U A)Â �BE CD....
Bài 9.
a) ABE ACD(c g c). b) ABE ACD(theo c u a)â �BE CD.
c ) ADE ABC� � �
DE // BC.
Bài 9.
a) ABE ACD(c g c). b) ABE ACD(theo c u a)â �BE CD.
c ) ADE ABC� � �
DE // BC.