Odpowiedzi

2009-12-14T19:08:31+01:00
P = a*a
Ob = 4 * a

P = 36cm²
a * a = 36 cm²
a = √P = √36 cm = 6 cm

Ob = 4 * a = 4 * 6 cm = 24 cm
1 5 1
2009-12-14T19:13:09+01:00
P = 36 cm²
jeden bok = 6 cm , bo 6 × 6 = 36 .
obwód = 6 cm × 4 ( bo są 4 boki ) = 24 cm .