IN FIG. given along side abc is a right triangle angle *B=90* ^{ o } ,AB= 28 cm and BC =21 cm .With AC as diameter a semicircle is drawn and iwth BC as radius a quarter circle is drawn .Find the area of shaded region correct to two decimal places.

*B=90* ^{ o } ,AB= 28 cm and BC =21 cm .With AC as diameter a semicircle is drawn and iwth BC as radius a quarter circle is drawn .Find the area of shaded region correct to two decimal places.

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