Răspuns :
a |----------|3|
b |----------| } 27.
27 - 3 = 24 ( 2 segmente egale)
24 : 2 = 12 (b)
12 + 3 = 15 (a)
Verificare : 15 +12 = 27 .
b |----------| } 27.
27 - 3 = 24 ( 2 segmente egale)
24 : 2 = 12 (b)
12 + 3 = 15 (a)
Verificare : 15 +12 = 27 .