When two solids are similar, the ratios between their magnitudes follow a power law of the ratio of similarity.

Property — Ratios of similarity for solids

If two solids are similar with ratio of similarity kk (the ratio between corresponding sides), then:

  • ratio between corresponding areas: k2k^2;
  • ratio between volumes: k3k^3.

Topics: Synthetic geometry of space
Concepts: Similarity of solids · Surface area · Volume
Skills: Using formulas