Odpowiedzi

2010-04-12T18:52:33+02:00
P=1/2*a*h
P=1/2*6*7
P=21
1 5 1
2010-04-12T18:53:21+02:00
A = 6
h = 7

P = ah/2
P = 42/2
P = 21 [j²] ;p
;)
1 5 1