From 696759a5956d5b3b49b0e2b71d801cfe06fe3669 Mon Sep 17 00:00:00 2001
From: pytony4 <aantone1123@gmail.com>
Date: Tue, 30 Sep 2025 19:23:43 +0300
Subject: [PATCH] added formulas for triangle

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 828cb57..9f22c25 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,10 @@
 - Circle: S = πR²
 - Rectangle: S = ab
 - Square: S = a²
+- Triangle: S = (a*h)/2
 
 ## Perimeter
 - Circle: P = 2πR
 - Rectangle: P = 2a + 2b
 - Square: P = 4a
+- Triangle: P = a + b + c