Get radius of a circle from Openlayers 3

Question

Hello, I’m in need of getting the radius of a circle created in Openlayers 3. Does anyone know how to do?

Here has the example of the map with the possibility to create the circles.

Answer 1

I found the following solution that worked very well:

draw.on('drawend', function(evt){
  var feature = evt.feature;
  var p = feature.getGeometry();
  var radius = p.getRadius();
  console.log(radius);
});