In the give figure, the sectors of two concentric circles of radii 7 cm and 3.5 cm are shown. Find the area of the shaded region.

In given figure sectors of two concentric circles of radius 7 cm and 3.5 cm are shown. Find the area of the shaded region.

In Figure, there are shown sectors of two concentric circles of radii 7cm and 3.5cm. Find the area of the shaded region. (U s epi(22)/7)

In Figure, there are shown sectors of two concentric circles of radii 7cm and 3.5cm. Find the area of the shaded region. (pi=(22)/7)

In Figure,there are shown sectors of two concentric circles of radii 7cm and 3.5cm. Find the area of the shaded region.(Use pi(22)/(7))

In fig., sectors of two concentric circles of radii 7 cm and 3.5 cm are given. Find the area of shaded region. ("Use " pi = (22)/(7))

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.

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

In the given figure PQ and AB are respectively the arcs of two concentric cicles of radii 7 cm and 3.5 cm with centre O. If /_POQ=30^(@) , find the area of the shaded region.

AB and CD are respectively arcs of two concentric circles of radii 21 cm and 7 cm and centre O. If ZAOB = 30^@ , find the area of the shaded region.

A B and C D are respectively arcs of two concentric circles of radii 21 cm and 7 cm and centre O . If /_A O B=30^@ , find the area of the shaded region.