Q. 145.0( 1 Vote )

Find the radius,

Answer :

Given:

length of arc (a) = 4.4m


area = 9.24m2


(a) Area of sector =




radius of sector = 4.2m


(b) Area of sector =





central angle = 60°


(c) perimeter of sector = 2 ( r) + length of arc


= 2(4.2) + 4.4


= 8.4 + 4.4


= 12.8cm


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