1.

In the figure given, RSTV is a square inscribed in a circle with centre O and radius V. What is the total area of unshaded region?

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


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