Odpowiedzi

2009-11-26T20:13:18+01:00
(2√2)² + ( 2√3)² = c²
8 + 12 = c²
c² = 20
c = √20 =√4 * 5 = 2√5
2√5 : 2 = √5
c = 2πr
c = 2π√5
c = 2√5π
1 5 1