Q. 11 F5.0( 1 Vote )

Select a proper option (a), (b), (c) or (d) from given options and write in the box given on the right so that the statement becomes correct:

The length of an arc subtending an angle of measure 60 at the centre of a circle whose area is 616 is ……….

A.

B. 66

C.

D. 33

Answer :

Area of circle = 616cm2


πr2 = 616


r2 = 196


r = 14 cm


Given θ = 60o


area of the minor sector =


=


=


= cm2


So, option(c) is the correct answer.

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