Q: From a circle of radius a, a sector, which subtend an angle π/5 a – McqOptions

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1.	Q: 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
A.	2πa
B.	$$ {π\over 5}{a}$$
C.	$$ {7π\over 5}{a}$$
D.	$$ {9π\over 5}{a}$$
Answer» E.

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