diff --git a/2-variables/09_hypotenuse.py b/2-variables/09_hypotenuse.py
index eb6b9e7..7fedd7c 100644
--- a/2-variables/09_hypotenuse.py
+++ b/2-variables/09_hypotenuse.py
@@ -4,6 +4,8 @@
 a = int(input("Enter a: "))
 b = int(input("Enter b: "))
 
-c = (a**2 + b**2) ** 0.5
-
-print(c)
+if a > 0 and b > 0:
+    c = (a**2 + b**2) ** 0.5
+    print("Hypotenuse is:", c)
+else:
+    print("Please enter positive numbers")