Odpowiedzi

2009-12-11T21:15:20+01:00
R = 2√3cm
H = 10cm

R = ⅔h
h = ½a√3
R = ⅔*½a√3
R = ⅓a√3
R = ⅓a√3 /*3
3R = a√3 /:√3
√3R = a
a = √3*2√3
a = 3*2
a = 6

V = ⅓Pp*H

Pp = ¼a√3

V = ⅓*¼*6√3*10
V = 5√3 cm²
Odp. Objętosc ostroslupa wynosi 5√3 cm²