11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
1. What is the area of the unshaded region?
3. Find the area of the parallelogram.
"Do Now"
2. What is the area of the shaded region?
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
Go over Quizzie Poos
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
HW 11.3pg. 801 (#1823, 27, 28, 32, 33)
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
What shape can you split the regular polygon (heptagon) into?
Regular Polygons
Unit 12: Area of Polygons and Circles11.4 Areas of Regular Polygons and Composite Figures
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
Finding Area of Regular Polygons
Regular polygons can be split into isosceles triangles(by drawing a line from each vertex to the center).
The apothem is the height of each isosceles triangle.It is perpendicular to the side of the polygon.
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
Finding Area of Regular Polygons General Formulas
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
The top of an umbrella shown is a regular hexagon with a side length of 2 feet and an apothem of 1.5 feet.
What is the area of the entire umbrella to the nearest tenth?
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
CHALLENGE #1Find the area of the regular hexagon.
Round to the nearest tenth.
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
CHALLENGE #2Find the area of the regular pentagon.
Round to the nearest tenth.
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
Composite Figure Irregular figureCombination of figures
11.4 Area of Regular Polygons and Composite Figures.notebook April 02, 2014
INTERIOR DESIGN Ms. Stalvey wants to wallpaper one wall of her family room. She has a fireplace in the center of the wall. Find the area of the wall around the fireplace.
