1)
[tex]S=\frac{(6\sqrt{3})^2\cdot \sqrt{3}}{4} =\frac{36\cdot3\cdot \sqrt{3}}{4}=27\sqrt{3}[/tex]
2)
[tex]R=\frac{6\sqrt{3}\cdot \sqrt{3} }{3} =6[/tex]
3)
[tex]r=\frac{6\sqrt{3}\cdot \sqrt{3} }{6} =3[/tex]
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Verified answer
1)
[tex]S=\frac{(6\sqrt{3})^2\cdot \sqrt{3}}{4} =\frac{36\cdot3\cdot \sqrt{3}}{4}=27\sqrt{3}[/tex]
2)
[tex]R=\frac{6\sqrt{3}\cdot \sqrt{3} }{3} =6[/tex]
3)
[tex]r=\frac{6\sqrt{3}\cdot \sqrt{3} }{6} =3[/tex]