diff --git a/src/TriangleChecker.java b/src/TriangleChecker.java
index 14f4841..ec61869 100644
--- a/src/TriangleChecker.java
+++ b/src/TriangleChecker.java
@@ -47,6 +47,9 @@ public class TriangleChecker {
 
   // Analyse der Dreiecksart
   public static TriangleType checkTriangle(float a, float b, float c) {
+    if (a + b > c || b + c > a || a + c > b) {
+      return TriangleType.NORMAL;
+    }
     return TriangleType.NONE;
   }