Lesson: Areas of Regular Polygons Mathematics • First Year of Secondary School

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In this lesson, we will learn how to find areas of regular polygons given their side lengths using a formula.

Students will be able to

derive and recall the formula for the area of a regular -sided polygon with side length : (note that this is equivalent to ),
calculate areas of -sided polygons given a side length or perimeter,
calculate side lengths and perimeters of regular polygons given their areas and number of sides,
calculate areas of compound shapes that are formed of regular polygons and other shapes.