A) area
B) circumference
C) \[2\pi \]
D) \[4\]
Correct Answer: D
Solution :
Circumference = area\[2\pi r=\pi {{r}^{2}}\] \[\Rightarrow \,\,r=2\] Diameter\[=2r=2\times 2=4.\]You need to login to perform this action.
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