similar
the number used to muliplpy the lengths of a figure to stretch or shrink it to a similar image.
what does key mean in math
Not similar, i.e., different.
a
about
Approximately
I do not know of such a word related to math(s)
There is no such math word, so it does not mean anything. You may wish to check your spelling before posting questions!
the word by means 'times' or 'multiply'
The word at means the least
not the same they look nothing alike