23. If 20 m of wire is available for fencing off a
flower-bed in the form of a circular sector,
then the maximum area (in sq m) of the
flower-bed is
[JEE Main 2017 (Offline
(a) 12.5 (b) 10 (c) 25 (d) 30 how come area is 1/2r^2m
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Answer:
(a) is the correct answer
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