A) \[\text{2 units}\]
B) \[\pi \text{ units}\]
C) \[\text{4 units}\]
D) \[\text{7 units}\]
Correct Answer: C
Solution :
[c] \[2\pi r=\pi {{r}^{2}}\] |
\[\Rightarrow \] radius, \[r=2\] |
\[\Rightarrow \] diameter, \[\text{2r}=\text{4}\]units. |
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