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In the given figure, arcs have been drawn of radius 7cm each with vertices A, B, C and D of quadrilateral ABCD as centres. Find the area of the shaded region.

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Let the measure of ∠A, ∠B, ∠C and ∠D be θ1, θ1, θ3 and θ4 respectively

Required area = Area of sector with centre A + Area of sector with centre B + Area of sector with centre C + Area of sector with centre D

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