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Problem 557
Find the area of a regular hexagon if one side has the length of 6
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Find the area of a regular hexagon inscribed in a circle of radius \(\mathrm{r}\). Calculate the area explicitly when a) \(\mathrm{r}=4\), b) \(\mathrm{r}=9\), c) \(\mathrm{r}=16\) d) \(\mathrm{r}=25\).
Draw a circle with a circumscribed square. If the radius length of the circle is \(\mathrm{r}\), prove that the area of the square region is \(4 r^{2}\).
Prove that the area bounded by a regular polygon of \(n\) sides circumscribed about a circle with a radius of length \(\mathrm{r}\) is given by the formula \(\mathrm{A}=\mathrm{nr}^{2} \tan \pi / \mathrm{n}\).
Show that the area of a regular polygon equals one-half the product of the lengths of the apothem and the perimeter.
Find the area of a regular hexagon circumscribed about a circle of radius \(\mathrm{r}\). Calculate the area explicitly if a) \(\mathrm{r}=4\); b) \(\mathrm{r}=9\) c) \(\mathrm{r}=16\) d) \(\mathrm{r}=25\).
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