From cbd0853cd37b1b16d4ea7bc3ec9c4e6856760410 Mon Sep 17 00:00:00 2001
From: BASHI3R <117200333+BASHI3R@users.noreply.github.com>
Date: Thu, 29 Oct 2026 21:41:17 -0400
Subject: [PATCH] Added surface area calculation for pyramid

---
 .../java/com/thealgorithms/maths/Area.java    | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/main/java/com/thealgorithms/maths/Area.java b/src/main/java/com/thealgorithms/maths/Area.java
index 84fc67159379..6ed2c30e0fdf 100644
--- a/src/main/java/com/thealgorithms/maths/Area.java
+++ b/src/main/java/com/thealgorithms/maths/Area.java
@@ -56,6 +56,25 @@ public static double surfaceAreaCuboid(final double length, double width, double
         return 2 * (length * width + length * height + width * height);
     }
 
+/**
+* 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 sphere.
      *