The radius of a circle is 17.5 cm. Find the area of the sector enclosed by two radii and an arc 44 cm in length.


Given:

Radius of circle = 17.5 cm


Length of arc = 44 cm


Length of arc = × 2πr


44 = × 2 × × 17.5


θ = 44 × 360 × × ×


θ = = 144°


Now, Area of sector = × πr2


= × × 17.5 × 17.5 = 385 cm2


Hence, the area of the sector is 385 cm2.


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