$\text{Skorzystamy ze wzoru: }P=\frac{a^2\sqrt{3}}{4}$

 

$a)P=\frac{{10}^2\sqrt{3}}{4}c{m}^2=\frac{100\sqrt{3}}{4}c{m}^2=25\sqrt{3}c{m}^2$ $a)P=\frac{{10}^2\sqrt{3}}{4}c{m}^2=\frac{100\sqrt{3}}{4}c{m}^2=25\sqrt{3}c{m}^2$

$b)P=\frac{{3,5}^2\sqrt{3}}{4}{m}^2=\frac{12,25\sqrt{3}}{4}{m}^2=3,0625\sqrt{3}{m}^2$

$c)P=\frac{{\left(\frac{2}{3}\right)}^2\sqrt{3}}{4}{m}^2=\frac{\frac{4}{9}\sqrt{3}}{4}{m}^2=\frac{1}{9}\sqrt{3}{m}^2=\frac{\sqrt{3}}{9}{m}^2$

$d)P=\frac{{\sqrt{6}}^2\cdot \sqrt{3}}{4}c{m}^2=\frac{6\sqrt{3}}{4}c{m}^2=\frac{3\sqrt{3}}{2}c{m}^2=1,5\sqrt{3}c{m}^2$

$e)P=\frac{{\left(2\sqrt{3}\right)}^2\cdot \sqrt{3}}{4}c{m}^2=\frac{4\cdot 3\cdot \sqrt{3}}{4}c{m}^2=3\sqrt{3}c{m}^2$