Section 11-4: Areas of Regular Polygons and Composite Figures

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Presentation transcript:

Section 11-4: Areas of Regular Polygons and Composite Figures Let’s draw a regular polygon and its: Center Radius Central angle Apothem

Section 11-4: Areas of Regular Polygons and Composite Figures

Section 11-4: Areas of Regular Polygons and Composite Figures Example: In the polygon below, JKLMNP is inscribed in ⨀R. Identify: Center Radius Central angle Apothem Measure of central angle

Section 11-4: Areas of Regular Polygons and Composite Figures Example:

Section 11-4: Areas of Regular Polygons and Composite Figures

Section 11-4: Areas of Regular Polygons and Composite Figures Example:

Section 11-4: Areas of Regular Polygons and Composite Figures A composite figure is a figure that can be separated into regions of basic figures, such as triangles, rectangles, trapezoids and circles. To find the area, find the area of each basic figure and then add them together for total area.

Section 11-4: Areas of Regular Polygons and Composite Figures Example:

Section 11-4: Areas of Regular Polygons and Composite Figures Example:

Section 11-4: Areas of Regular Polygons and Composite Figures Homework: Pages 811 – 813 #8 – 24 all, not #18, #21, #23. ***NOTE: #24 is CHALLENGING