diff --git a/shapes.py b/shapes.py
index 731ec39..826a8b7 100644
--- a/shapes.py
+++ b/shapes.py
@@ -1,11 +1,20 @@
-# shapes.py
+    # shapes.py
 # ---------
 # By MWC contributors
 
 from turtle import *
 
 def triangle(side_length):
-    pass
+    
+    forward(side_length)
+    right(120)
+    forward(side_length)
+    right(120)
+    forward(side_length)
+    right(120)
+    
 
 def rectangle(height, width):
     pass
+
+