IPA: /əˈfɪnli/
KK: /əˈfɪn li/
In a way that relates to or is based on a mathematical transformation that preserves points, straight lines, and planes.
The two shapes are related affinely, maintaining their parallelism and ratios.
Affinely → It is formed from "affine" (from Latin "affinis", meaning related or connected) and the suffix "-ly" (meaning in a manner). The word "affinely" means in a manner that is related or connected, often used in mathematical contexts to describe transformations that preserve certain properties.
Think of 'affine' meaning 'related' or 'connected' — so when something is done 'affinely', it is done in a way that maintains those connections.