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- shaded portion is sector
- Area of circle = πr^
=22/7×7×7
=22×7
=154sq.cm
3. A(PYS) = teta/360×πr^
=60/360× 22/7×7×7
=1/6×22×7
=154/6
= 25.66
= 25.7 sq.cm
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