24,325
It’s less than 30,000
The 3 is next to the 2
The 2 isn’t next to 1 or 4
The 5 isn’t next to 1 or 4
The 3 is next to 4
Star = 5
square =3
or the other way around
One leg is horizontal, on the line y=3. Another leg is vertical, on the line x=1. The point where these intersect, D(1, 3) is the vertex of a right angle. Any right triangle inscribed in a circle has its hypotenuse as the diameter of the circle.
Since the triangle is a right triangle, the circumcenter is the midpoint of the hypotenuse: ((8, 3) + (1, -5))/2 = (4.5, -1).