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Faces, Edges and Vertices

1. A semicirc...

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1. A semicircle of diameter 2 units sits at the top of a semicircle of diameter 4 units.The shaded region inside the smaller semicircle but outside the larger semicrcle is called a lune .The area of the lune is

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Q. A semi circle of diameter 1 unit sits at the top of a semi-circle of diameter 2 units. The shaded region inside the smaller semi-circle but outside the larger semi-circle is called a lune.The area of the lune is

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