diff --git a/02-triangleArea/index.js b/02-triangleArea/index.js
index 7628fcd..4deaa85 100644
--- a/02-triangleArea/index.js
+++ b/02-triangleArea/index.js
@@ -1,3 +1,6 @@
-export function triangleArea(base, height) { 
+export function triangleArea(base, height) {
   // your code here
-} 
\ No newline at end of file
+  if (!base || !height) return 0;
+
+  return (base * height) / 2;
+}