diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 84fc67159379..8d7871e1d57f 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -76,15 +76,22 @@ public static double surfaceAreaSphere(final double radius) {
      * @param slantHeight slant height of the pyramid
      * @return surface area of the given pyramid
      */
-    public static double surfaceAreaPyramid(final double sideLength, final double slantHeight) {
+    public static double surfaceAreaPyramid(
+            final double sideLength, final double slantHeight) {
+
         if (sideLength <= 0) {
-            throw new IllegalArgumentException("");
+            throw new IllegalArgumentException(
+                    "side length must be greater than 0");
         }
+
         if (slantHeight <= 0) {
-            throw new IllegalArgumentException("slant height must be greater than 0");
+            throw new IllegalArgumentException(
+                    "slant height must be greater than 0");
         }
-        double baseArea = sideLength * sideLength;
-        double lateralSurfaceArea = 2 * sideLength * slantHeight;
+
+        final double baseArea = sideLength * sideLength;
+        final double lateralSurfaceArea = 2 * sideLength * slantHeight;
+
         return baseArea + lateralSurfaceArea;
     }