A) 22
B) 24
C) 26
D) 32
Correct Answer: A
Solution :
Let r be the radius of circle. \[\therefore \] \[\pi {{r}^{2}}=38.5\] \[\Rightarrow \] \[{{r}^{2}}=\frac{38.5\times 7}{22}=12.25\] \[\Rightarrow \] \[r=3.5\,cm\] \[\therefore \] Circumference of circle \[=2\pi r\] \[=2\times \frac{22}{7}\times 3.5\] \[=22\,cm\]You need to login to perform this action.
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