This math topic involves calculating the area of a circle sector, where students are given the sector's angle and the circle's radius. The task requires students to compute the area rounded to the nearest integer. The problems vary in angle measurements and circle radii, challenging students to apply the formula for the area of a sector consistently across different scenarios. This is an introductory activity to the broader subjects of geometry, specifically focusing on circle areas, sectors, and shapes resembling donuts.
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Find the area (to the closest integer) of the green shaded sector with an angle of 40º in the circle with radius 5