Such a triangle has a fixed aspect ratio a ⁄ c. If both a and c are rational numbers, the lengths of the sides of the triangle can be chosen so that a and c each correspond to the smallest ...

Irrational / Rational Numbers and Recurring Decimals Every number is either rational or irrational, whether large or small, negative or positive.

The Journal of the Learning Sciences, Vol. 3, No. 1 (1993 - 1994), pp. 37-92 (56 pages) In this article, we present a study using an intermediate abstraction as a model for the acquisition of the ...