diff --git a/circle_area.py b/circle_area.py
index 513d6f7..c98783e 100644
--- a/circle_area.py
+++ b/circle_area.py
@@ -4,3 +4,9 @@
 
 print("This program will calculate the area of a circle.")
 radius = float(input("What is the circle's radius? "))
+
+pi = 3.141592653
+
+area = pi * radius * radius
+
+print(area)
diff --git a/greetings.py b/greetings.py
index 2d878a6..509bf48 100644
--- a/greetings.py
+++ b/greetings.py
@@ -2,6 +2,6 @@
 # ------------
 # By MWC contributors
 
-my_name ="Chris"
+my_name = input("What is your name?")
 greeting = "Hello, " + my_name
 print(greeting)
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..ddb1526
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand.
+package = []
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.10"
+content-hash = "53f2eabc9c26446fbcc00d348c47878e118afc2054778c3c803a0a8028af27d9"
diff --git a/shapes.py b/shapes.py
index 731ec39..d6eadaf 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(width)
+    right(90)
+    forward(height)
+    right(90)
+    forward(width)
+    right(90)
+    forward(height)
+    right(90)