From 3de94ab6c0d6548519c38e2330b9eefaa33a439b Mon Sep 17 00:00:00 2001
From: hnguye32 <116814567+hnguye32@users.noreply.github.com>
Date: Tue, 21 Oct 2025 12:55:24 -0400
Subject: [PATCH] added surface area calc

---
 .../java/com/thealgorithms/maths/Area.java    | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 7a06fd5e5fa0..8e0347ed46ff 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -192,4 +192,28 @@ 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;
+	}
+
+
+
+
+
 }