Get limits of a polygon in google maps

Dear communities have a greeting from me, I want to make a query, and that is that I am developing a map of coverage areas and I have been able to draw many areas on the map, in the code that I am going to share with you below I have only left 3 for Example and demonstration uses, now, what my code should do is that every time the google maps marker leaves the red polygon its value becomes false.

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      <style>
         body {
         margin: 0; 
         padding: 0
         }
         html, 
         body, 
         #map {
         height: 100%; 
         font-family: Arial, sans-serif; 
         font-size: .9em; 
         color: #fff;
         }
         #note { 
         text-align: center;
         padding: .3em; 10px; 
         background: #009ee0; 
         }
         .bool {
         font-style: italic;
         color: #313131;
         }
         .info {
         display: inline-block;
         width: 40%;
         text-align: center;
         }
         .infowin {
         color: #313131;
         }
         #title,
         .bool{
         font-weight: bold;
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      <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCA3CvqkU5D5dLfADaABJi3OxjoWL64keA&callback=initMap&libraries=places,geometry,drawing&v=weekly" defer></script>
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   <body onload="init()">
      <div id="note">
         <span id="title">&raquo;Inside the circle?&laquo;</span>
         <hr />
         <span class="info">Marker <strong>A</strong>: <span id="a" class="bool"></span></span> &larr;&diams;&rarr; <span class="info">Marker <strong>B</strong>: <span id="b" class="bool"></span></span>
      </div>
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         function sueltala() {
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           icon: 'success',
           title: '¡Información importante!',
           text: 'Something went wrong!',
           footer: '<a href>Why do I have this issue?</a>'
         })
         }
      </script> 
      <!-- Main JS File --> 
      <script src="assets/js/main.min.js"></script> 
      <script>
         var x = document.getElementById("demo");
         window.onload = function init() {
           if (navigator.geolocation) {
         navigator.geolocation.getCurrentPosition(showPosition);
         } else {
         x.innerHTML = "Geolocation is not supported by this browser.";
         }
         function showPosition(position) {
         x.innerHTML = position.coords.latitude + "," + position.coords.longitude;
         var
         contentCenter = '<span class="infowin">Center Marker (draggable)</span>',
         contentA = '<span class="infowin">Marker A (draggable)</span>',
         contentB = '<span class="infowin">Marker B (draggable)</span>';
         var
         latLngCenter = new google.maps.LatLng(position.coords.latitude, position.coords.longitude),
         latLngCMarker = new google.maps.LatLng(position.coords.latitude, position.coords.longitude),
         latLngA  = new google.maps.LatLng(position.coords.latitude, position.coords.longitude),
         latLngB = new google.maps.LatLng(38, -93),
         coords = [ [ [-89.19868711734125, 13.69215075483513], [-89.19807557368586, 13.691410653984653], [-89.19831965470621, 13.690871212812844], [-89.19834915900537, 13.69033177040379], [-89.19825796389887, 13.690128501928752], [-89.19697050357172, 13.690097229840053], [-89.19645551944086, 13.69013371394311], [-89.19598345065424, 13.690670550805194], [-89.19385914111444, 13.691295990264242], [-89.19233564639399, 13.691963123853995], [-89.19868711734125, 13.69215075483513], [-89.19868711734125, 13.69215075483513], [-89.19868711734125, 13.69215075483513]], [ [-89.19570795712826, 13.673281378361137], [-89.19570795712826, 13.673281378361137], [-89.19570795712826, 13.673281378361137], [-89.19654480634091, 13.673281378361137], [-89.19667355237362, 13.671175564389776], [-89.19562212643979, 13.6697786279033], [-89.1954075497186, 13.670612620832053], [-89.19602982221005, 13.67232229710495], [-89.19570795712826, 13.673281378361137]], [ [-89.18643520663386, 13.704821815720464], [-89.18654249499446, 13.703946250391347], [-89.1831092674554, 13.703550160242049], [-89.18302343676692, 13.70413387180797], [-89.18403194735652, 13.70430064627475], [-89.18403194735652, 13.704592501306768], [-89.1865854103387, 13.704842662474233], [-89.18643520663386, 13.704821815720464], [-89.18643520663386, 13.704821815720464]]],
         map = new google.maps.Map(document.getElementById('map'), {
          zoom: 7,
          center: latLngCenter,
          mapTypeId: google.maps.MapTypeId.ROADMAP,
          mapTypeControl: false
         }),
         markerCenter = new google.maps.Marker({
          position: latLngCMarker,
          title: 'Center of Circle',
          map: map,
          draggable: true
         }),
         infoCenter = new google.maps.InfoWindow({
          content: contentCenter
         }),
         markerA = new google.maps.Marker({
          position: latLngA,
          title: 'A',
          map: map,
          label: 'A',
          draggable: true
         }),
         infoA = new google.maps.InfoWindow({
          content: contentA
         }),
         markerB = new google.maps.Marker({
          position: latLngB,
          title: 'B',
          map: map,
          label: 'B',
          draggable: true
         }),
         infoB = new google.maps.InfoWindow({
          content: contentB
         })
         // exemplary setup: 
         // Assumes that your map is signed to the var "map"
         // Also assumes that your marker is named "marker"
         ,
         /* circle = new google.maps.Circle({
          map: map,
          clickable: false,
          // metres
          radius: 100000,
          fillColor: '#fff',
          fillOpacity: .6,
          strokeColor: '#313131',
          strokeOpacity: .4,
          strokeWeight: .8
         }); */
        bounds = new google.maps.LatLngBounds();
      for (var i = 0; i < coords.length; i++) {
      var polygonCoords = [];
      for (var j = 0; j < coords[i].length; j++) {
        var pt = new google.maps.LatLng(coords[i][j][1], coords[i][j][0])
        bounds.extend(pt);
        polygonCoords.push(pt);
      }
      // Construct the polygon.
      circle = new google.maps.Polygon({
        paths: polygonCoords,
        strokeColor: '#FF0000',
        strokeOpacity: 0.8,
        strokeWeight: 2,
        fillColor: '#FF0000',
        fillOpacity: 0.35,
        map: map
      });
      };
         // attach circle to marker
         circle.bindTo('center', markerCenter, 'position');

         google.maps.Polygon.prototype.getBounds = function() {
    var bounds = new google.maps.LatLngBounds();

    this.getPaths().forEach(function(path) {
        path.forEach(function(point) {
            bounds.extend(point);
        });
    });

    return bounds;
};
         
         var
         // get the Bounds of the circle
         bounds = circle.getBounds()
         // Note spans
         ,
         noteA = jQuery('.bool#a'),
         noteB = jQuery('.bool#b');
         
         noteA.text((100000 > google.maps.geometry.spherical.computeDistanceBetween(markerA.getPosition(),markerCenter.getPosition())));
         noteB.text((100000 > google.maps.geometry.spherical.computeDistanceBetween(markerB.getPosition(),markerCenter.getPosition())));
         
         // get some latLng object and Question if it's contained in the circle:
         google.maps.event.addListener(markerCenter, 'dragend', function() {
         latLngCenter = markerCenter.position;
         noteA.text((100000 > google.maps.geometry.spherical.computeDistanceBetween(markerA.getPosition(),markerCenter.getPosition())));
         noteB.text((100000 > google.maps.geometry.spherical.computeDistanceBetween(markerB.getPosition(),markerCenter.getPosition())));
         });
         
         google.maps.event.addListener(markerA, 'dragend', function() {
         latLngA = markerA.position;
         noteA.text((100000 > google.maps.geometry.spherical.computeDistanceBetween(markerA.getPosition(),markerCenter.getPosition())));
         });
         
         google.maps.event.addListener(markerB, 'dragend', function() {
         latLngB = markerB.position;
         noteB.text((100000 > google.maps.geometry.spherical.computeDistanceBetween(markerB.getPosition(),markerCenter.getPosition())));
         });
         
         google.maps.event.addListener(markerCenter, 'click', function() {
         infoCenter.open(map, markerCenter);
         });
         
         google.maps.event.addListener(markerA, 'click', function() {
         infoA.open(map, markerA);
         });
         
         google.maps.event.addListener(markerB, 'click', function() {
         infoB.open(map, markerB);
         });
         
         google.maps.event.addListener(markerCenter, 'drag', function() {
         infoCenter.close();
         noteA.html("draggin&hellip;");
         noteB.html("draggin&hellip;");
         });
         
         google.maps.event.addListener(markerA, 'drag', function() {
         infoA.close();
         noteA.html("draggin&hellip;");
         });
         
         google.maps.event.addListener(markerB, 'drag', function() {
         infoB.close();
         noteB.html("draggin&hellip;");
         });
         }
         };
      </script>
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