Odpowiedzi

2010-03-27T19:58:19+01:00
V=Pp × H
Pp=d²/2
Pp=36cm/2
Pp=18cm²
V=216cm³

Pc=2Pp + Pb
Pb=12 x 6 = 72cm2
Pc=2 x 18+ 4x72
Pc=324cm²
2010-03-27T20:06:54+01:00
Pp=½*6*6
Pp=18cm²
V=Pp*H
V=18cm²*12cm
V=216cm³

a√2=6 /:√2
a=6/√2 /razy √2/√2
a=3√2

P=2*Pp +4Pb
P=36cm²+4*3√2*12
P=46cm²+144√2cm²