From 4a7b4139e6eeae770d2a0a4a7a646baf4637c665 Mon Sep 17 00:00:00 2001
From: kshithijm1 <kshithij.m@gmail.com>
Date: Tue, 21 Oct 2025 12:22:41 -0400
Subject: [PATCH] Added surface area calculation for pyramid

---
 src/main/java/com/thealgorithms/maths/Area.java | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 7a06fd5e5fa0..fbb1ac5984f8 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -192,4 +192,18 @@ public static double surfaceAreaCone(final double radius, final double height) {
         }
         return Math.PI * radius * (radius + Math.pow(height * height + radius * radius, 0.5));
     }
+    /**
+     * Calculate the surface area of a pyramid with a square base.
+     */
+    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;
+    }
 }