1.

In the given figure, RSTV is a square inscribed in a circle with centre O and radius r. The total area of the shaded region is ___,

A.  \[{{\text{r}}^{2}}(\pi -2)\]             
B.  \[\text{2}{{\text{r}}^{2}}(2-\pi )\] 
C.  \[\pi \text{(}{{\text{r}}^{2}}-2)\]   
D.         \[8{{r}^{2}}-8r\]    
Answer» B.  \[\text{2}{{\text{r}}^{2}}(2-\pi )\] 


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