Guessing game for the trig function cosine and sine for angles that are multiples of pi/6, pi/4, pi/3, pi/2. Click the green flag and click on the units for the angles: positive or negative radians, or positive or negative degrees. A large blue dot will appear at a random position, together with its projections on the x and y axes. A question (Q) is displayed: what is the (cos,sin) of this angle. Click a gray button for the cosine, then a button for sine. Your answer (A) will be display as well as the correct (C) answer.
See the "studio" for notes and credits that apply to all projects.
