# Comparison of means

- Author:
- Simona Riva

- Topic:
- Arithmetic, Arithmetic Mean, Geometric Mean, Means, Statistics

This GeoGebra activity shows four different

*means*of two values*a*,*b*. (*AM*= arithmetic,*GM*= geometric,*QM*= quadratic and*HM*=harmonic) geometrically . The values are dynamically shown as segments on a semicircle's diameter, and can be modified by moving point*C*. Move point*C*to explore how the means associated to*a*,*b*vary accordingly, and explore the inequality: