The area of an equilateral triangle ABC is 17320.5 cm2. With each vertex of the triangle as centre, a circle is drawn with radius equal to half the length of the side of the triangle (See the given figure). Find the area of shaded region. [Use π = 3.14 and]
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Let the side of the equilateral triangle be a.
Area of equilateral triangle = 17320.5 cm2
Each sector is of measure 60°.
Area of sector ADEF
Area of shaded region = Area of equilateral triangle − 3 × Area of each sector