Circular park with a path of given width around it: area of the path

1. A.
   139 $m^2$
2. B.
   135 $m^2$
3. C.
   142 $m^2$
4. D.
   150 $m^2$

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1. A.
   $179.07\ \text{m}^2$
2. B.
   $131.09\ \text{m}^2$
3. C.
   $138.02\ \text{m}^2$
4. D.
   $144.05\ \text{m}^2$

Tap an option to check your answer.