From cbd67c9e45343129d47c300b95c0d096258c3f3c Mon Sep 17 00:00:00 2001
From: maria <mariakuttemm001@gmail.com>
Date: Thu, 29 Oct 2026 19:54:08 -0400
Subject: [PATCH] Added surface area calculation for pyramid

---
 .../java/com/thealgorithms/maths/Area.java    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 84fc67159379..1cb9c55a750f 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -76,6 +76,10 @@ public static double surfaceAreaSphere(final double radius) {
      * @param slantHeight slant height of the pyramid
      * @return surface area of the given pyramid
      */
+
+
+    /*
+    commenting out this section to replace it with new code:
     public static double surfaceAreaPyramid(final double sideLength, final double slantHeight) {
         if (sideLength <= 0) {
             throw new IllegalArgumentException("");
@@ -87,6 +91,27 @@ public static double surfaceAreaPyramid(final double sideLength, final double sl
         double lateralSurfaceArea = 2 * sideLength * slantHeight;
         return baseArea + lateralSurfaceArea;
     }
+*/
+ /// added code chunk below:
+    /**
+     * Calculate the surface area of a pyramid with a square base.
+     *
+     * @param sideLength side length of the square base
+     * @param slantHeight slant height of the pyramid
+     * @return surface area of the given pyramid
+     */
+    public static double surfaceAreaPyramid(final double sideLength, final double slantHeight) {
+        if (sideLength <= 0) {
+            throw new IllegalArgumentException("Must be a positive sideLength");
+        }
+        if (slantHeight <= 0) {
+            throw new IllegalArgumentException("Must be a positive slantHeight");
+        }
+        double baseArea = sideLength * sideLength;
+        double lateralSurfaceArea = 2 * sideLength * slantHeight;
+        return baseArea + lateralSurfaceArea;
+    }
+
 
     /**
      * Calculate the area of a rectangle.