We have already seen that all similar triangles have equal trigonometric ratios. Thus, someone could think that there is no relation whatsoever between trigonometric[br]ratios and the length-dimensions of the triangle. Solve the next activity to[br]see that the previous supposition is not true.[br][br]Students work in pairs (students A and B).[br][br]1) Student A selects positions for both orange points in the circle, thus, changing the value of the radious of the circle (the length of the hypotenuse) and the angle in the triangle.[br]2) Student B translates the numerical values of the triangle from the graphic view to the spreadsheet and makes calculations.[br]3) Students A and B interchange positions and repeat steps 1 and 2, a number of times.[br]4) Students write down conclusions about the observed numerical relations.[br]5) Students translate conclusion to algebraic language.