Hide part of a character by C# code - UNITY 3D

The character was used in my first educacional game published (free) in Play Store: https://play.google.com/store/apps/details?id=com.gustavovanin.roboticmath

Reference in Unity site: Clique here

Resume: 

// in class

public GameObject player_part;

//in update

 if(Input.GetButtonDown("Action"))

{

  //print("B (X-Box) / E (keyboard)");

  player_part = GameObject.Find("/Character Controller/Player/corpo");

  player_part.SetActive(false);

}

Other options:

- playerObject.GetComponent<MeshRenderer>().enabled = false;

- GameObject.Find("corpo"); //find without path  

Thank you.