Oblicz pole powierzchni i objetosc walca, ktorego srednica wynosi 22 cm, a wysokosc 25 cm
d = 22 cm
h = 25 cm
d = 2r
22 = 2r |:2
r= 11 cm
Pb = 2πrh = 2π11*25 = 550πcm²
Pc = 2πr(r+h)=2π11(11+25) = 22π*36 = 792πcm²
V = πr²*h=π11²*25=121π*25=3025πcm³
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d = 22 cm
h = 25 cm
d = 2r
22 = 2r |:2
r= 11 cm
Pb = 2πrh = 2π11*25 = 550πcm²
Pc = 2πr(r+h)=2π11(11+25) = 22π*36 = 792πcm²
V = πr²*h=π11²*25=121π*25=3025πcm³