Odpowiedzi

2010-03-09T19:52:07+01:00
SD/DC =SA/AB
SD/8 =SD+AD/12
SD/8 = SD+6/12
12 SD=8 SD +48
4 SD = 48 :4
SD = 12

AS = SD + AD
AS = 12+6
AS = 18
2 5 2