Odpowiedzi

2010-04-05T12:40:29+02:00
Pp = a²
a = √Pp
a = √64
a = 8 cm

Pb = Pc - Pp
Pb = 384 - 64
Pb = 320 cm²

Pś = Pb/4
Pś = 320/4
Pś = 80 cm²

Pś = ½ * a * h
h = (2Pś)/a
h = 20

H² + (½a)² = h²
H² + 16 = 400
H² = 384
H = √384
H = 8√6

V = ⅓ * Pp * H
V = ⅓ * 64 * 8√6
V = (512√6)/3 cm³