Question

129. There is a circular park with a radius 10m. A path is
constructed with 1m width around the park. Find the area
of the park including the path around it.​

Answer 1

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Given that, a circular park is surrounded by a road. <br> Width of the road = 21 m <br> Radius of the park

<br>

Radius of whole circular portion (park + road), <br>

<br> Now, area of road = Area of whole circular portion - Area of circular park <br> =

<br> =

<br> =

<br> =

<br> =

[

] <br> =

<br> =

<br> Hence, the required area of the road is

.