Update index.html

Author: Gmac4247

index.html

@@ -3075,25 +3075,25 @@ <h3 itemprop="eduQuestionType" style="margin:7px">Area of a Circle Segment</h3>
 
   // Case 1: height + radius known → derive length
   if (!isNaN(h) && !isNaN(r) && isNaN(l)) {
-    let angle = Acos((r - h) / r);
-    l = 2 * r * sin(angle);
-    lInput.value = l.toFixed(5);
-    autoFilledField = "chord-length";
-  }
+  // l was empty, so we auto-fill it
+  l = 2 * r * sin(angle);
+  lInput.value = l.toFixed(5);
+  autoFilledField = "chord-length";
+}
 
-  // Case 2: height + length known → derive radius
-  if (!isNaN(h) && !isNaN(l) && isNaN(r)) {
-    r = (l ** 2 + 4 * h ** 2) / (8 * h);
-    rInput.value = r.toFixed(5);
-    autoFilledField = "parent-radius";
-  }
+if (!isNaN(h) && !isNaN(l) && isNaN(r)) {
+  // r was empty, so we auto-fill it
+  r = (l ** 2 + 4 * h ** 2) / (8 * h);
+  rInput.value = r.toFixed(5);
+  autoFilledField = "parent-radius";
+}
 
-  // Case 3: length + radius known → derive height
-  if (!isNaN(l) && !isNaN(r) && isNaN(h)) {
-    h = r - Math.sqrt(r ** 2 - (l / 2) ** 2);
-    hInput.value = h.toFixed(5);
-    autoFilledField = "segment-height";
-  }
+if (!isNaN(l) && !isNaN(r) && isNaN(h)) {
+  // h was empty, so we auto-fill it
+  h = r - Math.sqrt(r ** 2 - (l / 2) ** 2);
+  hInput.value = h.toFixed(5);
+  autoFilledField = "segment-height";
+	}
 
   // Validity check 
  if (h > r || l < 2 * h || r < h) {