In the given figure, three sectors of a circle of radius 7  cm, making angles of 60^∘, 80^∘ and 4...

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In the given figure, three sectors of a circle
of radius 7  cm, making angles of 60^∘, 80^∘ and 40^∘ at the centre are shaded. Find the
- area of the shaded reqion.

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