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## Click here for Parent Guide with Extra Practice for Chapter 8 - Polygons and Circles from CPM

 Chapter Objective Students will be able to… Standard(s) Help/Examples Practice 8.1.2 Find the sum of the interior angles of a polygon G-GMD.1 8.1.3 Determine the measure of an interior angle of a regular polygon G-GMD.1 Interior and Exterior Angles of a Polygon 8.1.3 Determine the measure of an exterior angle of a regular polygon G-GMD.1 8.1.5 Find the area of any regular polygon G-GMD.1 Calculating the area and perimeter of regular polygons (given apothem and radius)Calculating the area and perimeter of regular polygons (given side and radius)How to Calculate the Area of Any Regular Polygon No Matter How Many Sides It Has 8.2.1 Use the zoom factor (ratio of similarity) of the area of similar figures to solve problems G-SRT.5 8.2.2 Use the zoom factor (ratio of similarity) of the perimeter of similar figures to solve problems G-SRT.5 Ratios of Perimeters and Ratios of Area 8.3.2 Find the area of any circle with a given radius G-GMD.1 Area of a circle 8.3.2 Find the circumference of a circle with a given radius G-GMD.1 Area and circumference of circles 8.3.2 Find the area of a sector of a circle with a given radius G-GMD.1 G-C.5 Area Of Sector Of A Circle 8.3.2 Find the length of an arc of a circle with a given radius G-GMD.1 G-C.5