diff --git a/Engine.Physics2D/Primitives/Circle.cs b/Engine.Physics2D/Primitives/Circle.cs
index 1d30cf2..4c31175 100644
--- a/Engine.Physics2D/Primitives/Circle.cs
+++ b/Engine.Physics2D/Primitives/Circle.cs
@@ -4,15 +4,14 @@ namespace Syntriax.Engine.Physics2D.Primitives;
 
 public record Circle(Vector2D Position, float Radius)
 {
-    public bool Intersects(Circle other)
-    {
-        float distanceSquared = (Position - other.Position).LengthSquared();
-        float radiusSumSquared = Radius * Radius + other.Radius * other.Radius;
+    public float RadiusSquared => Radius * Radius;
+    public float Diameter => 2f * Radius;
 
-        return distanceSquared < radiusSumSquared;
-    }
-
-    public bool Overlaps(Vector2D point) => (Position - point).LengthSquared() <= Radius * Radius;
-    public bool ApproximatelyEquals(Circle other)
-        => Position.ApproximatelyEquals(other.Position) && Radius.ApproximatelyEquals(other.Radius);
+    public static bool ApproximatelyEquals(Circle left, Circle right)
+        => left.Position.ApproximatelyEquals(right.Position) && left.Radius.ApproximatelyEquals(right.Radius);
+}
+
+public static class CircleExtensions
+{
+    public static bool ApproximatelyEquals(this Circle left, Circle right) => Circle.ApproximatelyEquals(left, right);
 }