$2$  

 $\frac{11}{12}$  

 $-\frac{2}{3}$  

 $\frac{1}{9}$  

isoscel

ascuțitunghic

echilateral

dreptunghic

$48\ cm^2$

$24\ cm^2$

$40\ cm^2$

$80\ cm^2$

 $\frac{4}{11}$  

 $\frac{9}{2}$  

 $\frac{27}{4}$  

 $\frac{11}{4}$  

 $79^010^,14^{,,}$  

 $79^{\degree}25^,14^{,,}$  

 $78^{\degree}23^,34^{,,}$  

 $100^{\degree}24^,46^{,,}$  

-5

5

-6

8