This math topic focuses on finding the arc length of a circle sector when given the sector area and circle radius, requiring approximation to the nearest integer. It is categorized under introductory geometry, specifically dealing with circle areas, sectors, and "donuts." Each problem presents a different sector area and radius, along with multiple-choice answers for the arc length. Skills practiced include applying formulas for circle sectors, understanding geometric properties, and performing calculations related to circle geometry.
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A sector with area 9.42 in a circle of radius 3 has what the arc length (to the closest integer)?