From bc18a393e0dbe05e10ac66ed17609effc6f01b25 Mon Sep 17 00:00:00 2001
From: Eric <eric.sacher88@gmail.com>
Date: Thu, 29 Oct 2026 16:17:52 -0400
Subject: [PATCH] Added my stuff

---
 .../java/com/thealgorithms/maths/Area.java    | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Java/src/main/java/com/thealgorithms/maths/Area.java

diff --git a/Java/src/main/java/com/thealgorithms/maths/Area.java b/Java/src/main/java/com/thealgorithms/maths/Area.java
new file mode 100644
index 000000000000..6e39ab1041c8
--- /dev/null
+++ b/Java/src/main/java/com/thealgorithms/maths/Area.java
@@ -0,0 +1,19 @@
+/**
+* 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;
+
+}
\ No newline at end of file