Sarthaks Test
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Four equal circles, each of radius 5 cm touch each other as shown in fig. Find the area included between them.

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Area required shaded = (area of square ABCD) – (Area of 4 quadrant)

Side of square = 5cm + 5cm

= 10cm

Area of square = side x side

= 10cm x 10cm =100cm2

Area of quadrant = 1/4(area of circle with radius 5 cm)

Area included between circles = (area of square) – 4(area of quadrant)

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