objetosc walca wynosi 250 pi cm szesciennych promien podstawy walca ma dlugosc 10 cm,ile wynosi pole przekroju osiowego walca?
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V=250pi r=10
Pp=pi * r^2 = 10^2 * pi = 100pi
100pi * H=250pi //:100pi
H=250pi/100pi = 2,5
Pf = 2 * r * H = 2 * 10 * 2,5 =50
v=250πcm³
r=10cm
p=2rh
250π=π10²h
2,5cm=h
p=2*10*2,5=50cm²
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