Skorzystamy ze wzoru na pole trójkąta równobocznego
[tex]P=\frac{a^2\sqrt3}4[/tex]
[tex]4P=a^2\sqrt3\\a^2=\frac{4P}{\sqrt3}\\a=\sqrt{\frac{4P}{\sqrt3}}[/tex]
a)
[tex]P=15\sqrt3\\a=\sqrt{\frac{4*15\sqrt3}{\sqrt3} } =\sqrt{4*15}=2\sqrt{15}[/tex]
b)
[tex]P=36\sqrt3\\a=\sqrt{\frac{4*36\sqrt3}{\sqrt3} } =\sqrt{4*36}=2*6=12[/tex]
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Skorzystamy ze wzoru na pole trójkąta równobocznego
[tex]P=\frac{a^2\sqrt3}4[/tex]
[tex]4P=a^2\sqrt3\\a^2=\frac{4P}{\sqrt3}\\a=\sqrt{\frac{4P}{\sqrt3}}[/tex]
a)
[tex]P=15\sqrt3\\a=\sqrt{\frac{4*15\sqrt3}{\sqrt3} } =\sqrt{4*15}=2\sqrt{15}[/tex]
b)
[tex]P=36\sqrt3\\a=\sqrt{\frac{4*36\sqrt3}{\sqrt3} } =\sqrt{4*36}=2*6=12[/tex]