I did use my paint program to print it....and the 1" square is true. Here are the measurements I got on the triangle and square.
Square: between 3 1/4" and 3 3/8"
Triangle: short side: between 3 5/8" and 3 3/4"
Long side: 5 1/8"
In looking this morning (after a cuppa coffee) I see they have you laying the triangle with the long edge along the long cut of the fabric. I'll try cutting it that way.
I was trying to avoid using the templates, and just cut with a ruler....with a more standard size of square and triangle.