Q. 134.0( 4 Votes )

Find the area of the shaded region in figure, where arcs drawn with centers A, B, C and D intersect in pairs at mid-point P, Q, R and S of the sides AB, BC, CD and DA, respectively of a square ABCD. (Use π = 3.14)


Answer :

Given: Side of square = 12 cm

To find: Area of shaded region.


Explanation:


Since P, Q, R and S divides AB, BC, CD and DA in half.


AP = PB = BQ = QC = CR = RD = DS = SA = 6 cm.


Given, side of a square BC = 12 cm


Area of the square = 12 × 12 = 144 cm2


Area of the shaded region = Area of the square - (Area of the four quadrants)





Area of four quadrants = 113.04 cm2


Area of the shaded region = 144-113.04 = 30.96 cm2


Hence the area of shaded region is 30.96 cm2.


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