diff --git a/10/3 - Rectangle.py b/10/3 - Rectangle.py
new file mode 100644
index 0000000..fa9b132
--- /dev/null
+++ b/10/3 - Rectangle.py	
@@ -0,0 +1,2 @@
+def rectanglePerimeter(width, height):
+   return width*2 + height*2