A round thalli has 2 inbuilt triangular design for serving vegetables and a seperate semi circular area for keeping rice or chapati. If radius of thalli is 21 cm,find the area of thalli that is shaded in the figure
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take the two triangles as a star find the area of the thali let the area left for roti be half of the plate and then you get the triangles side as the diameter and then find the area with heron formula
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