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Answer : 4. "
From a circle of radius a, a sector, which subtend an angle π/5 at the centre has been cut off. The perimeter of the remaining part of the circle is
5Q:
From a circle of radius a, a sector, which subtend an angle π/5 at the centre has been cut off. The perimeter of the remaining part of the circle is
- 12πafalse
- 2false
π - 3false
π - 4true
π
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