Answer :
P, Q, R, S are the midpoints of the AB, BC, CD, and DA respectively.
AP=1/2 AB=1/2(14)=7cm
r=7cm
As the radius of all quadrants is same, the area of all the 4 quadrants will also be same.
Area of shaded region= Area(square) – 4 × Area(quadrant)
=
=
= 196-154 =42cm2
∴ Area of the shaded region is 42cm2
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RS Aggarwal - Mathematics