This applet is designed to help you discover the right triangle trig ratios. You will need to know the opposite, hypotenuse, and adjacent sides of the triangle with respect to a given angle. Keep B a 90 degree angle. Move the other points and pay attention to the AH,OH,OA, and sin(a),cos(a), tan(a). If you move the points so that B is not 90 degrees, what do you notice?