Q8 of 64 Page 74

Calculate the arc length of a sector whose perimeter and radius are 35 cm and 8 cm respectively.

perimeter of a sector = 35 cm


radius = 8 cm


Perimeter = arc length + r + r


= arc length + 2r


35 =arc length + 2(8)


Arc length (a)= 35 – 16 = 19cm


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