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d-średnica podstawy
r-promień podstawy
H-wysokość walca
d/D=cos60
d=4cm
r=d/2=2cm
H/D=sin60
H=4√3cm
V=πr²*H
V=π*2²*4√3 cm³
V=16*√3π
Pc=2*πr²+2πr*H
Pc=2πr*(r+H)
Pc=2*π*2*(2+4√3) cm²
Pc=8*π*(1+2√3)cm²