Odpowiedzi

2010-03-01T22:40:13+01:00
H²+2²=5²
h²+4=25/-4
h=√21
7 1 7
2010-03-01T22:45:23+01:00
C -przekatna = 5 cm
r-promień =2cm
d - srednica
d=2r =2 *2 =4cm
h -wysokośc
^2 - do potegi 2

h^2 = c^2 - d^2
h^2 = 5^2 - 4^2
h^2 = 25-16
h^2 = 9
h =3 cm
1 5 1
2010-03-01T22:50:21+01:00
X²+2²=5²
x²+4=25
x²=25-4
x²=21
x=√21
1 1 1