Kind of stuck n this question, I just got the circle equation written down for the robot don't know what to do from here.
A bicycle robot is travelling on a circle centred at the origin and with a radius of 6m. The robot measures its position by sending signals to another turtle robot travelling on the straight line y = x and looking for reflected signals. The bicycle robot comes to a stop and measures its distance from the turtle robot to be 6 root 2 m at a point when the path of the latter intersects with that of the former. Calculate the location of the bicycle robot.