The constant ratio by which all distances are increased (or decreased) in a similarity. A similarity with ratio of magnification equal to 1 is called an isometry.

# Ratio of Magnification

## See also

Central Dilation, Dilation, Expansion, Geometric Contraction, Isometry, Similar, Similar Triangles, Similarity, Similarity Transformation, Translation## Explore with Wolfram|Alpha

## References

Coxeter, H. S. M. and Greitzer, S. L.*Geometry Revisited.*Washington, DC: Math. Assoc. Amer., p. 94, 1967.

## Referenced on Wolfram|Alpha

Ratio of Magnification## Cite this as:

Weisstein, Eric W. "Ratio of Magnification."
From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/RatioofMagnification.html