Odpowiedź:
Zad. 11.
Sześcian ma 12 krawędzi.
4.8m/12 = 0.4m
V = [tex]0.4^{3}[/tex] = 0.064[tex]m^{3}[/tex]
Zad. 12.
Pp = 36[tex]\sqrt{3} }[/tex] [tex]cm^{2}[/tex]
Pb = 108[tex]cm^{2}[/tex]
[tex]\frac{a^{2}\sqrt{3} }{4} = 36\sqrt{3}[/tex] |*4
[tex]a^{2} \sqrt{3} = 144\sqrt{3}[/tex]
a = 12cm
a to jeden z boków ściany bocznej, zatem b = Pb / a
b = 108/12
b = 9cm
b = H
V = Pp * H
V = 36[tex]\sqrt{3}[/tex][tex]cm^{2}[/tex] * 9cm
V = 324[tex]cm^{3}[/tex]
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Odpowiedź:
Zad. 11.
Sześcian ma 12 krawędzi.
4.8m/12 = 0.4m
V = [tex]0.4^{3}[/tex] = 0.064[tex]m^{3}[/tex]
Zad. 12.
Pp = 36[tex]\sqrt{3} }[/tex] [tex]cm^{2}[/tex]
Pb = 108[tex]cm^{2}[/tex]
[tex]\frac{a^{2}\sqrt{3} }{4} = 36\sqrt{3}[/tex] |*4
[tex]a^{2} \sqrt{3} = 144\sqrt{3}[/tex]
a = 12cm
a to jeden z boków ściany bocznej, zatem b = Pb / a
b = 108/12
b = 9cm
b = H
V = Pp * H
V = 36[tex]\sqrt{3}[/tex][tex]cm^{2}[/tex] * 9cm
V = 324[tex]cm^{3}[/tex]