From ffa7d27c6da1cc5901e18e9e7530df66fafbff68 Mon Sep 17 00:00:00 2001
From: NUftalem <149097936+NUftalem@users.noreply.github.com>
Date: Mon, 20 Oct 2025 10:07:15 -0400
Subject: [PATCH 1/2] Update Area.java

---
 src/main/java/com/thealgorithms/maths/Area.java | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 7a06fd5e5fa0..44bb75dae4bb 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -192,4 +192,21 @@ 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.
+ * @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;
 }
+

From 5aefee1283f33ebbd99a6aa6a399eeeccf461892 Mon Sep 17 00:00:00 2001
From: NUftalem <149097936+NUftalem@users.noreply.github.com>
Date: Mon, 20 Oct 2025 10:15:49 -0400
Subject: [PATCH 2/2] Add surface area method for square-based pyramid

---
 src/main/java/com/thealgorithms/maths/Area.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 44bb75dae4bb..37be5b3cc195 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -209,4 +209,4 @@ public static double surfaceAreaPyramid(final double sideLength, final double sl
     double lateralSurfaceArea = 2 * sideLength * slantHeight;
     return baseArea + lateralSurfaceArea;
 }
-
+}