Update index.html

Author: Gmac4247

index.html

@@ -1476,10 +1476,10 @@ <h6 style="font-size:160%;margin:7px">Area of a circle</h6>
 
   // Segment validity check
 
-  if (!(ratio >= 0.11 && ratio <= 1)) {
+if (ratio < 0.11 || ratio > 1) {
   document.getElementById('segment-area').innerText = 'The ratio is out of range';
   return;
-  }
+}
 
   const angle = parseFloat(2 * Atan(ratio));
   const sine = parseFloat(sin(angle));