2. Polynomials
7. Triangles
10. Circles
11. Constructions
12. Heron's Formula
14. Statistics
14.3. Bar Graph
14.4. Histogram
14.5. Frequency Polygons
14.7. Mean, Median, and Mode
14.7.1. Mean
14.7.2. Median
14.7.3. Mode
14.7.3.1. Mode of Ungrouped Data
14.7.3.2. Empirical Formula for Calculating Mode
15. Probability