Mark the intersection points of the rays and Circle d by selecting the Intersect tool and clicking on the point of intersection. The radius of the smallest circle is one unit, and the radius of each s...Mark the intersection points of the rays and Circle d by selecting the Intersect tool and clicking on the point of intersection. The radius of the smallest circle is one unit, and the radius of each successive circle is one unit more than the previous one. Since the circles on the grid are the same distance apart, segment PA′ has twice the length of segment PA, and the same holds for the other points.