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 :

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

Concentric circles of radii 1,2,3,. . . . ,100 c m 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 1000pi b. 5050pi c. 4950pi d. 5151pi

Concentric circles of radii 1,2,3,. . . . ,100 c m 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 1000pi b. 5050pi c. 4950pi d. 5151pi

Concentric circles of radii 1,2,3,. . . . ,100 c m 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 1000pi b. 5050pi c. 4950pi d. 5151pi

Two concentric circle of radii 5 cm and 3cm are drawn. Find the length of the chord of the larger circle which touches the smaller circles.

Two concentric circles of radii 5cm and 3cm are drawn. Find the length of the chord of the larger circle which touches the smaller circle.

Two concentric circles of radii 5cm and 3cm are drawn. Find the length of the chord of the larger circle which touches the smaller circle.

Two concentric circles have radii 20 cm and 15 cm. Find the area of ring shaped region

Two concentric circles of radii 3.5 cm and 7cm form a sector as shown in the figure. Find the area of the shaded region.