Hi wolfhound,

I'm confused about your drawing. In the drawing you said you already had a right triangle. Which angle is the right angle? Is 2.3 the hypotenuse? You never said anything about it being isosceles. Is it?

Try using microsoft paint to make your drawing.

Start - Program - Accessories - Paint

Label your triangle A, B, C. Name the sides you know and the angle you know. Then it'll be easy.