OA and OB are mutually perpendicular radii of a circle find the area of minor segment if the perimeter of corresponding minor sector is 20 cm
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(2r)+(2×22/7×r)/4=20
2×r (29/28)=20
r=280/29
area=(90/360)×22/7×280/29×280/29
area=73.25
2×r (29/28)=20
r=280/29
area=(90/360)×22/7×280/29×280/29
area=73.25
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