diff --git a/circle_area.py b/circle_area.py
index 2f65776..585b61d 100755
--- a/circle_area.py
+++ b/circle_area.py
@@ -1,3 +1,8 @@
 # TODO: DEFINE a function using the def keyword called `area_of_circle`
+import math
+
+def area_of_circle(radius):
+    area = (radius ** 2) * math.pi
 # TODO: implement the function to RETURN (NOT PRINT) the area of a circle whose radius is r
+    return area
 # HINT: You'll need to import math to solve this problem correctly.