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1 April, 18:00

In a circle of radius 10 cm, a sector has an area of 40 (pi) sq. cm. What is the degree measure of the arc of the sector?

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  1. 1 April, 18:57
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    The main formula is

    sector area = n / 360° x Pi r²

    4 = n / 360 x r² = n° / 36,

    144° = n
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