11.1 Area of Squares and Rectangles
11.2 Areas of Parallelograms and Triangles
11.3 The Area of a Trapezoid
11.4 The Area of a Kite and Related Figures
11.5 Area of Regular Polygons
11.6 The Areas of Circles, Sectors, and Segments
11.7 Ratio of Areas
11.8 Surface Area