A) 7
B) 10
C) 11
D) 14
Correct Answer: A
Solution :
[a] Area of square \[=121\,c{{m}^{2}}\] Side of square \[=\sqrt{121}=11\,cm\] Perimeter square \[=4\times 11=44\,cm\] \[\Rightarrow \] Circumference of circle = Perimeter of square \[=44\,cm\,2\pi r=44\] (Where, r be the radius of circle) \[\therefore \] \[r=\frac{44\times 7}{2\times 22}=7\,cm\] |
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