$\frac{\pi}{3}cm^2$

$\frac{\pi}{6}\ cm^2$

$\frac{\pi}{2}cm^2$

$\frac{\pi}{9}cm^2$

$\frac{3}{5}$

$\frac{4}{5}$

$\frac{4}{3}$

$\frac{5}{3}$

$\frac{1}{\sqrt{3}}$

$\frac{1}{2}$

2

$\frac{\sqrt{3}}{2}$

$1.34\degree$

$77\degree$

$257\degree$

$100\degree$

0.848

0.854

$-0.6$

$-0.354$