Odpowiedzi

2010-04-14T15:48:03+02:00
P = a²
49 = a²
a = √49
a = 7

Bok kwadratu ma dlugosc 7 cm.
Obw = 7 * 4 = 28 cm
4 3 4
2010-04-14T16:01:41+02:00