From 6408120427ac1baa77f2926810aea5076757ffd2 Mon Sep 17 00:00:00 2001
From: Hemanth Sundaresan <s.hemanthsundar@gmail.com>
Date: Tue, 21 Oct 2025 03:54:30 -0400
Subject: [PATCH] Added surface area calculation for pyramid

---
 .../java/com/thealgorithms/maths/Area.java    | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 7a06fd5e5fa0..a22653a8154a 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -175,6 +175,26 @@ public static double surfaceAreaHemisphere(final double radius) {
         }
         return 3 * Math.PI * radius * radius;
     }
+    
+    /**
+* 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 surface area of a cone.