Questão 1987460

\(\frac{1}{3}r^2\left(\frac{\pi}{6}+\sqrt{3}\right)\)

\(r^2\left(\frac{2\pi}{3}+\sqrt{3}\right)\)

\(\frac{1}{2}r^2\left(\frac{\pi}{3}-\frac{\sqrt{3}}{4}\right)\)

\(\frac{1}{6}r^2\left(\frac{2\pi}{3}+\sqrt{3}\right)\)

\(2r^2\left(\frac{5\pi}{3}-\frac{3\sqrt{3}}{2}\right)\)