AMC = B^+ ^C2 , ACM = ACD + C^1 DO C^1 = C^2 , B^ = ACD -> ACM =...

1, AMC =

B^+ ^C

2

, ACM = ACD +

C^

1

Do

C^

1

=

C^

2

,

B^

= ACD -> ACM = AMC

-> ∆ACM cõn.