diff --git a/circle_area.py b/circle_area.py
index 513d6f7..d936120 100644
--- a/circle_area.py
+++ b/circle_area.py
@@ -4,3 +4,6 @@
 
 print("This program will calculate the area of a circle.")
 radius = float(input("What is the circle's radius? "))
+pi = 3.141592653
+circle_area = pi * radius * radius
+print(circle_area)
\ No newline at end of file
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..41be8d0
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Poetry 2.2.0 and should not be changed by hand.
+package = []
+
+[metadata]
+lock-version = "2.1"
+python-versions = ">=3.10,<4.0"
+content-hash = "7b8fc01b274bd807fb00372bbc8e138330f15ae7978ed61e180f3b17ec076725"
diff --git a/shapes.py b/shapes.py
index 731ec39..9d88ec2 100644
--- a/shapes.py
+++ b/shapes.py
@@ -5,7 +5,19 @@
 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
+    forward(height)
+    right(90)
+    forward(width)
+    right(90)
+    forward(height)
+    right(90)
+    forward(width)
+    right(90)
\ No newline at end of file