simple triangle -angle calculator

Does anyone have, or know of a simple triangle calculator, I have been googling for an hour but all I get is junk. I need do find some angle degrees for a 2 equal sided triangle or a 90 deg triangle's angles. Thanks in advance.

Construction Master 5, made by Calculated Industries and distributed at Home Depot and Lowes.

You can always just use some high school trigonometry: 1. The sum of all the angles in a triangle always add up to 180 degrees. 2. cos (theta) = adjacent / hypotenuse sin (theta) = opposite / hypotenuse tan (theta) = opposite / adjacent

I found this http://www.camalotsoftware.com/ -or google "camalot angle" I was trying to find an angle calculation of one angle along a hypotenuse of a right triangle and use a table saw to cut an angled end of a 1x5, but in the end it was only 6-10 deg angle which was easily done with some plaining. thanks all :P