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2answers
61 views

An expression similar to “frame of reference”

I am trying to explain a mathematical point that is used for comparison such that all values are compared to it, like a "frame of reference". I've also thought of "pivot of comparison". Are any of ...
1
vote
3answers
6k views

What's the difference between perimeter and circumference? [closed]

What's the difference between perimeter and circumference when they mean the total length of the boundary of a two-dimensional geometric shape?