This article was originally published with the title “ To find Triangles with their Sides Proportional to Integral Numbers ” in SA Supplements Vol. 75 No. 1952supp (May 1913), p. 351 doi:10. ...

(Motivate) If one angle of a triangle is equal to one angle of another triangle and the sides including these angles are proportional, the two triangles are similar. Let us now begin with the ...