The Similarity Ratio for Lengths, Areas, and Volume (k, k², k³)

When two plane figures are similar, there is a ratio of similarity between their corresponding sides (k) and their area (k²). When two solids are similar, there is a similarity ratio between their corresponding edges (k), their corresponding faces (k²) and their volume (k³).

Each of these ratios can be used to find a missing measurement in a figure or a missing measurement in a solid.