diff --git a/examples/Paperjs.org/SatieLikedToDraw.html b/examples/Paperjs.org/SatieLikedToDraw.html
index d832ddb0..9c3e2850 100644
--- a/examples/Paperjs.org/SatieLikedToDraw.html
+++ b/examples/Paperjs.org/SatieLikedToDraw.html
@@ -128,7 +128,7 @@
                 sum += data[j];
             }
             var avg = sum / (255 * (end - start));
-            bands[i] = Math.sqrt(avg / Math.sqrt(2));
+            bands[i] = Math.sqrt(avg / Math.SQRT2);
         }
         return bands;
     }
diff --git a/examples/Tools/Vektor.html b/examples/Tools/Vektor.html
index a8ab3f7d..8e678eba 100644
--- a/examples/Tools/Vektor.html
+++ b/examples/Tools/Vektor.html
@@ -126,7 +126,7 @@
         var upVector = vector.normalize(lengthSize).rotate(45 * sign);
         var downVector = upVector.rotate(-90 * sign);
         var lengthVector = vector.normalize(
-                vector.length / 2 - lengthSize * Math.sqrt(2));
+                vector.length / 2 - lengthSize * Math.SQRT2);
         var line = new Path();
         line.add(from + awayVector);
         line.lineBy(upVector);
diff --git a/test/tests/HitResult.js b/test/tests/HitResult.js
index 4d4c2bb2..742d27ff 100644
--- a/test/tests/HitResult.js
+++ b/test/tests/HitResult.js
@@ -540,7 +540,7 @@ test('hit-testing fills with tolerance', function() {
     });
 
     var tolerance = 10;
-    var point = path.bounds.bottomRight.add(tolerance / Math.sqrt(2));
+    var point = path.bounds.bottomRight.add(tolerance / Math.SQRT2);
 
     equals(function() {
         var result = paper.project.hitTest(point, {
diff --git a/test/tests/Point.js b/test/tests/Point.js
index 4b75de97..41a5d1e6 100644
--- a/test/tests/Point.js
+++ b/test/tests/Point.js
@@ -88,12 +88,12 @@ test('set angle', function() {
 
 test('set angle & length', function() {
     var point1 = new Point();
-    point1.length = Math.sqrt(2);
+    point1.length = Math.SQRT2;
     point1.angle = -45;
 
     var point2 = new Point();
     point2.angle = -45;
-    point2.length = Math.sqrt(2);
+    point2.length = Math.SQRT2;
 
     equals(point2, point1);
 });