Pole powieszchni kuli jest rowne 2 pi.Oblicz objetosc kuli.rysunek i obliczenia. dziekuje z gory za pomoc
P=2pi [j²]
P=4piR^2
4piR^2=2pi
R^2=2pi/4pi
R^2=1/2
R=√(1/2)=1/√2=√2/(√2√2)=√2/2[j]
V=4/3piR³
V=4/3*(√2/2)³π=4/3 *2√2/8π
V=√2/3 π [j³]
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P=2pi [j²]
P=4piR^2
4piR^2=2pi
R^2=2pi/4pi
R^2=1/2
R=√(1/2)=1/√2=√2/(√2√2)=√2/2[j]
V=4/3piR³
V=4/3*(√2/2)³π=4/3 *2√2/8π
V=√2/3 π [j³]