A chord of a circle of radius 10 cm subtends an angle of 60° at the centre O. Find the area of the shaded region. (Use √3 = 1.73, √2 = 1.41 and π = 3.14)

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TextArea of Segment of a CircleCBSE PYQ

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A chord of a circle of radius 14 cm subtends an angle of 90° at the centre. Find perimeter of shaded region.

TextLength of Arc of a SectorArea of Segment of a Circle

Interschool Rangoli Competition was organized by one of the reputed schools of Odissa. The theme of the Rangoli Competition was Diwali celebrations where students were supposed to make mathematical designs. Students from various schools participated and made beautiful Rangoli designs. One such design is given below. Rangoli is in the shape of square marked as ABCD, side of square being 40 cm. At each corner of a square, a quadrant of circle of radius 10 cm is drawn (in which diyas are kept). Also a circle of diameter 20 cm is drawn inside the square.

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