This math topic focuses on calculating the area of a circle sector to the closest integer. It involves determining the area of sectors with varying fractions (e.g., 2/3, 1/3, 2/5, 3/8) of circles with different radii. The questions require applying the formula for the area of a circle sector, which combines understanding of circle geometry and fractional multiplication, enhancing problem-solving and precision skills in geometry, particularly related to circle sectors. This is framed within a broader context of introductory circle geometry, covering areas, sectors, and related concepts.
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Find the area (to the closest integer) of the green shaded sector that covers 2/5 of the circle with radius 5