bpo-44734: Fix precision in turtle tests (GH-27343) (GH-27361)

(cherry picked from commit 3f135c073a53793ec68902f6b513934ddff47235)

Co-authored-by: Logan Jones <loganasherjones@gmail.com>
diff --git a/Lib/test/test_turtle.py b/Lib/test/test_turtle.py
index 86d6507..8d6d3a7 100644
--- a/Lib/test/test_turtle.py
+++ b/Lib/test/test_turtle.py
@@ -235,17 +235,9 @@ def test_vector_negative(self):
         self.assertVectorsAlmostEqual(-vec, expected)
 
     def test_distance(self):
-        vec = Vec2D(6, 8)
-        expected = 10
-        self.assertEqual(abs(vec), expected)
-
-        vec = Vec2D(0, 0)
-        expected = 0
-        self.assertEqual(abs(vec), expected)
-
-        vec = Vec2D(2.5, 6)
-        expected = 6.5
-        self.assertEqual(abs(vec), expected)
+        self.assertEqual(abs(Vec2D(6, 8)), 10)
+        self.assertEqual(abs(Vec2D(0, 0)), 0)
+        self.assertAlmostEqual(abs(Vec2D(2.5, 6)), 6.5)
 
     def test_rotate(self):