Explanation
the area of a Hexagon is given by:
[tex]A=\frac{3\sqrt[]{3}s^2}{2}[/tex]where s is the length of the side
then,let
side= s=20 cm
Now, replace.
[tex]\begin{gathered} A=\frac{3\sqrt[]{3}s^2}{2} \\ A=\frac{3\sqrt[]{3}(20\operatorname{cm})^2}{2} \\ A=\frac{3\sqrt[]{3\text{ }}\cdot400\operatorname{cm}^2}{2} \\ A=3\sqrt[]{3\text{ }}\cdot200\operatorname{cm} \\ A=\sqrt[]{3\text{ }}\cdot600\operatorname{cm} \\ A=1039.23cm^2 \end{gathered}[/tex]so, the answer is 1039.23 square centimeters
I hope this helps you