Q. 23.7( 18 Votes )

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Answer :

Since the angle subtended at centre is 60°

And by the property, if two sides of a triangle are equal then their corresponding angles are also equal.


ORP = OPR


As the sum of all internal angles of a triangle is equal to 180°


ORP = OPR = 60°


Δ OPR is an equilateral triangle.




AT = 43.25 sq. cm


Area Of Sector (O-PQR), AS is given as:




AS = 52.33 sq.cm


Area of shaded region, AR = As – AT


AR = 52.33 – 43.25


AR = 9.08 sq.cm


Area of shaded region is 9.08 sq.cm


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