A bicycle wheel has radius R. Let P be a point on the spoke of a wheel at a distance d from the center of the wheel. The wheel begins to roll to the right along the the x-axis. The curve traced out by P is given by the following parametric equations: [x(0) = 210 - 15 sin(0) (y(0) = 21 - 15 cos(0) What must we have for R and d? R = d =