Concentric circle of radii 1,2,3,.....,1...

Concentric circle of radii 1,2,3,.....,100 cms are drawn. The interior of smallest circle is colored red and the angular regions are colored alternately green and red , so that no two adjacent regions are of same color. The total area of green regions in sq. cm. is equals to :

`1000 pi `

`5050 pi`

`4950 pi`

`5151 pi `

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Concentric circles of radii 1,2,3,...,100cm are drawn.The interior of the smallest circle is colored red and the angular regions are colored alternately green and red,so that no two adjacent regions are of the same color. Then,the total area of the green regions in sq. cm is equal to 1000 pi b.5050 pi c.4950 pi d.5151 pi

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